Mr. Caiden wants to do repairs to his house and requires 300 feet of metal roofing to do this. If each foot of roofing costs $8, and the supplier of the metal roofing brings in 250 feet of metal roofing for free, how much money is Mr. Caiden required to pay for the remaining metal roofing?

How many feet of metal roofing did the supplier bring in? ** The supplier brought 300 ft - 250 ft =

<<300-250=50>>50 fewer feet of metal roofing. How much money does Mr. Caiden have to pay for the remaining metal roofings? ** Therefore the total amount of money Mr. Caiden has to pay for the remaining metal roofings is 50 feet * $8/foot = $<<50*8=400>>400 #### 400 Belinda can throw a ball at a speed of 20 feet/second. If the ball flies for 8 seconds before hitting the ground, and Belinda's border collie can run 5 feet/second, how many seconds will it take the border collie to catch up to the ball? How far does the ball fly? ** First find the total distance the ball flies: 20 feet/second * 8 seconds = <<20*8=160>>160 feet How many seconds will it take the border collie to catch up to the ball? ** Then divide that distance by the dog's speed to find how long it takes the dog to catch up to the ball: 160 feet / 5 feet/second = <<160/5=32>>32 seconds #### 32 Bart buys $10 of notepads for $1.25 each. They have 60 pages each. How many pages did he buy? How many notepads does he buy? ** He buys 10/1.25=<<10/1.25=8>>8 notepads How many pages did he buy? ** That means he buys 8*60=<<8*60=480>>480 pages #### 480 Cecil has $600. Catherine has $250 less than twice as much as Cecil while Carmela has $50 more than twice Cecil's money. How much money do they have altogether? How much money does Catherine have? ** Twice as much as Cecil's money is $600 x 2 = $<<600*2=1200>>1200. How much money does Catherine have? ** So, Catherine has $1200 - $250 = $<<1200-250=950>>950. How much money does Carmela have? ** While Carmela has $1200 + $50 = $<<1200+50=1250>>1250. How much money do they have altogether? ** Hence, they have a total of $600 + $950 + $1250 = $<<600+950+1250=2800>>2800. #### 2800 Fernanda purchased six audiobooks from Audible to listen to from her audible app. If each audiobook was 30 hours long and she listened to 2 hours of an audiobook each day, calculate the total time it took her to finish the six audiobooks? How many days did it take Fernanda to finish one audiobook? ** To finish an audiobook 30 hours long, listening to 2 hours of each audiobook a day, Fernanda took 30 hours / 2 hours/day =<<30/2=15>>15 days to finish one audiobook. How many days will it take Fernanda to finish all the audiobooks? ** If she purchased 6 audiobooks, the total number of days she will take to finish all the audiobooks is 6 audiobooks * 15 days/audiobook = <<6*15=90>>90 days #### 90 Roe saved $10 per month from January to July and saved $15 per month from August to November. How much should she save in December so she will have a total savings of $150 in the year? How much did Roe save in the first 7 months? ** Since there are 7 months from January to July, then Roe's savings for those months sum up to $10 x 7 = $<<7*10=70>>70. How much did Roe save in the last 4 months? ** Since there are 4 months from August to November, then her savings for those months sum up to $15 x 4 = $<<4*15=60>>60. How much did Roe save in the year? ** Her total savings from January to November is $70 + $60 = $<<70+60=130>>130. How much should Roe save in December? ** Therefore, she needs to save $150 - $130 = $<<150-130=20>>20 in December. #### 20 Julia has $40. She spends half of her money to buy a new game for her phone. She spends a quarter of what she has left on in-game purchases. How much money does she have left? How much money does Julia spend on the game? ** Julia spend $40 / 2 = $<<40/2=20>>20 on the game. How much money does Julia have left? ** After buying the game, she has $40 - $20 = $<<40-20=20>>20 left. How much money did Julia spend on in-game purchases? ** She spent $20 / 4 = $<<20/4=5>>5 on in-game purchases. How much money does Julia have left? ** She has $20 - $5 = $<<20-5=15>>15 left. #### 15 Grace can read a 200-page book in 20 hours. How long would it take her to finish reading a 250-page book at this constant rate? How many pages can Grace read in 1 hour? ** Grace can read 200/20 = <<200/20=10>>10 pages in 1 hour. How many hours would it take Grace to finish a 250-page book? ** So she can finish a 250-page book in 250/10 = <<250/10=25>>25 hours. #### 25 There are some kids in camp. Half of the kids are going to soccer camp, and 1/4 of the kids going to soccer camp are going to soccer camp in the morning. 750 kids are going to soccer camp in the afternoon. How many kids there in camp altogether? How many kids are going to soccer camp in the morning? ** There are 750/3=<<750/3=250>>250 kids going to soccer camp in the morning. How many kids are going to soccer camp altogether? ** There are 250*4=<<250*4=1000>>1000 kids going to soccer camp altogether. How many kids are there in camp altogether? ** There are 1000*2=<<1000*2=2000>>2000 kids in camp altogether. #### 2000 Jack and Jill shared the cost of renting a cottage that costs $5 an hour. If they rented it for eight hours, how much did each friend pay? How much did they pay in total? ** The total cost of renting the cottage for 8 hours is $5 x 8 = $<<5*8=40>>40. How much did each friend pay? ** So, each friend pay $40/2 = $<<40/2=20>>20 each. #### 20