Before Marcus went on a road trip to LA, his car had 1728 miles on it. He filled his empty gas tank twice and used up all the gas on the trip. If Marcus's car gets 30 miles per gallon and holds 20 gallons of gas, how many miles does Marcus' car have on it now?

First, figure out how many gallons of gas Marcus bought by multiply the gas tank's volume by the number of fill-ups: 20 gallons * 2 =

<<20*2=40>>40 gallons Then multiply that number by Marcus's fuel mileage to find how many miles he drove: 40 gallons * 30 miles/gallon = <<40*30=1200>>1200 miles Then add that amount to the initial number of miles on Marcus' car to find the final number of miles: 1728 miles + 1200 miles = <<1728+1200=2928>>2928 miles #### 2928 Mr. Sean has a veterinary clinic where he charges clients $60 to treat a dog and $40 to care for a cat. If Khalil took 20 dogs and 60 cats to the clinic for treatment, how much money did he pay Mr. Sean? To treat his 20 dogs, Mr. Sean charged Khalil 20*$60 = $<<20*60=1200>>1200 Khalil also paid $40*60 = $<<40*60=2400>>2400 to Mr. Sean to treat his cats. Altogether, Khalil paid Mr. Sean $2400+$1200 = $<<2400+1200=3600>>3600 to treat his pets. #### 3600 Liam wants to go to Paris, but first, he has to pay his bills. His trip costs $7,000, and his bills cost $3,500. Knowing that Liam has saved $500/month for 2 years, how much money will he have left after paying his bills? In total Liam has saved ($500/month * 12 months/year) * 2 years = $12,000 When Liam pays his bills, he will have $12,000 - $3,500 = $<<12000-3500=8500>>8,500 left #### 8500 Camp Cedar has 40 boys, it has 3 times as many girls. It needs 1 counselor for every 8 children. How many counselors does Camp Cedar need? Camp has 3 * 40 boys = <<3*40=120>>120 girls. Camp Cedar has a total of 40 boys + 120 girls = <<40+120=160>>160 children. Camp needs 1 counselor per 8 children, so 160 children / 8 children = <<160/8=20>>20 counselors needed. #### 20 There are 19 students in the 3rd grade and twice that number in the 4th grade. There are 10 boys and 19 girls in the 2nd grade. How many students are there in total? In the third grade, there are <<19=19>>19 students In the fourth grade, there are 2 × 19 = <<2*19=38>>38 students Counting the boys and girls in the second grade, there are 10 + 19 = <<10+19=29>>29. There are 19 + 38 + 29 = <<19+38+29=86>>86 students in total. #### 86 Christina and her friend are driving across the state. When Christina is driving the speed limit is 30 miles per hour. When her friend is driving, the speed limit is 40 miles per hour. The drive is 210 miles total. If her friend drives for 3 hours and both drive at the speed limit, how many minutes will Christina drive? The friend drives 40*3=<<40*3=120>>120 miles. Thus, Christina drives 210-120 =<<210-120=90>>90 miles. Since the speed limit is 30 miles per hour when Christina is driving, she drives for 90/30=<<90/30=3>>3 hours. Thus, she drives for 3*60=<<3*60=180>>180 minutes. #### 180 Grover bought 3 boxes of face masks. He plans to sell them for $0.50 each. If each box has 20 face masks, and he bought the 3 boxes for $15, how much will be his total profit? Grover will earn $0.50 x 20 = $<<0.50*20=10>>10 for each box. So, he will earn $10 x 3 = $<<10*3=30>>30 after selling all the face masks. Therefore, his total profit will be $30 - $15 = $<<30-15=15>>15. #### 15 Olaf has an aquarium. He has fish in 3 different colors: orange, green, and blue. Blue fish make up half of all the fish in the aquarium. There are 15 fewer orange fish than blue fish. How many green fish are there when the total number of fish in the aquarium is 80? If there are 80 fish in total, then there are 80 fish / 2 = <<80/2=40>>40 blue fish. The orange fish count is 15 less than blue, so it's 40 fish - 15 fish = 25 fish. Olaf has then 80 fish - 25 fish - 40 fish = <<80-25-40=15>>15 green fish. #### 15 There are 4 trains waiting at a train station and each train has 4 carriages. Each carriage has 3 rows of wheels and the rows of wheels have 5 wheels each. How many wheels are at the train station? Each carriage has 3 rows of wheels * 5 wheels per row = <<3*5=15>>15 wheels. So each train has 4 carriages * 15 wheels per carriage = <<4*15=60>>60 wheels. There is therefore a total of 4 trains * 60 wheels per train = <<4*60=240>>240 wheels at the train station. #### 240 Robin wants to buy jelly bracelets for her friends. She decides to buy one bracelet for each letter of the first name of her friends. Her friends are Jessica, Tori, Lily and Patrice. If each jelly bracelet costs $2, what is the total she will spend in dollars? There are 7 letters in Jessica. There are 4 letters in Tori. There are 4 letters in Lily. There are 7 letters in Patrice. In all this is, 7 + 4 + 4 + 7 = <<7+4+4+7=22>>22 letters and thus 22 bracelets. The total cost is 22 bracelets * $2 = $<<22*2=44>>44 #### 44