James has 3 gallons of milk. He drank 13 ounces of the milk. If there are 128 ounces in a gallon, how many ounces of milk does James have left?

First find out how many ounces of milk James had to begin with by multiplying the number of gallons by the number of ounces per gallon: 3 gallons * 128 ounces/gallon =

<<3*128=384>>384 oz Now subtract the 13 ounces James drank from the initial amount of milk: 384 oz - 13 oz = <<384-13=371>>371 oz #### 371 Clive opens a box full of different colored balls. 
The box contains 6 blue balls, 4 red balls, 3 times as many green balls as blue ones and twice as many yellow ones as red ones. 
How many balls are in the box Clive opens? There are 3 times as many green balls as blue balls so green balls = blue balls * 3. Green balls = 6 blue balls * 3 = <<6*3=18>>18 green balls There are 2 times as many yellow balls as red ones so yellow balls = red balls * 2. Yellow balls = 4 red balls * 2 = <<4*2=8>>8 yellow balls The total number of all the balls is 6 blue + 4 red + 18 green + 8 yellow: 6+4+18+8 = <<6+4+18+8=36>>36 balls #### 36 Christy and her friend Tanya go to Target to buy some face moisturizer and body lotions. Christy spends twice as much as Tanya, who pays 50$ for two face moisturizers each and 60$ per body lotion, buying four of them. How much money did they spend together in total? The total amount Tanya spent on face moisturizers is 50*2 = $<<50*2=100>>100 If she bought four body lotions, the total cost is 4*60 = $<<4*60=240>>240 Tanya spent a total of 240+100 = $<<240+100=340>>340 in the store. If Christy spent twice this amount, the total was 2*340 = $ 680 The total amount of money they both spent is 680+340 = <<680+340=1020>>1020$ #### 1020 Tom has a quarter as much money as Nataly. Nataly has three times as much money as Raquel. How much money do Tom, Raquel, and Nataly have combined if Raquel has $40? If Nataly has 3 times as much money as Raquel, she has 3 * $40 = $<<3*40=120>>120 Tom has 1/4 as much money as Nataly, so he has 1/4 * $120 = $<<1/4*120=30>>30 Combined, the three have $30 + $120 + $40 = $<<30+120+40=190>>190 #### 190 Gerald wants to buy a meat pie that costs 2 pfennigs. Gerald has 54 farthings, and there are 6 farthings to a pfennig. How many pfennigs will Gerald have left after buying the pie? First convert the number of farthings Gerald has to pfennigs by dividing by the exchange rate: 54 farthings / 6 farthings/pfennig = <<54/6=9>>9 pfennigs Then subtract the cost of the meat pie to find how many pfennigs Gerald has left: 9 pfennigs - 2 pfennigs = <<9-2=7>>7 pfennigs #### 7 Jack is trying to stack cans in his emergency bunker. If he can fit 12 cans in one row, 4 rows on one shelf, and 10 shelves in one closet, how many cans can he store in each closet? First find the total number of cans Jack can fit on one shelf: 12 cans/row * 4 rows/shelf = 48 cans/shelf Then find the number of cans he can fit on all the shelves in one closet: 48 cans/shelf * 10 shelves = <<48*10=480>>480 cans #### 480 An animal shelter recently took in twelve cats. The shelter already had half that number of cats. Two days later, three had been adopted. The next day, one of the cats had five kittens, and one person arrived to pick up one of the cats that was their missing pet. How many cats does the shelter have now? The shelter started with 12 / 2 = <<12/2=6>>6 cats. The cats they took in increased the number to 12 + 6 = <<12+6=18>>18 cats. Three cats were adopted, so they had 18 - 3 = <<18-3=15>>15 cats. One cat had 5 kittens, which increased the number of cats to 15 + 5 = 20 cats. The pet owner came to get his missing cat, so they now have 20 - 1 = <<20-1=19>>19 cats. #### 19 Dirk sells amulets at a Ren Faire. He sells for 2 days and each day he sells 25 amulets. Each amulet sells for 40 dollars and they cost him 30 dollars to make. If he has to give 10% of his revenue to the faire, how much profit did he make? He sold 2*25=<<2*25=50>>50 amulets So he made 40*50=$<<40*50=2000>>2000 The faire took 2000*.1=$<<2000*.1=200>>200 So he kept 2000-200=$<<2000-200=1800>>1800 The amulets cost 50*30=$<<50*30=1500>>1500 to make So he had a profit of 1800-1500=$<<1800-1500=300>>300 #### 300 At Clark's Food Store, apples cost 40 dollars for a dozen, and pears cost 50 dollars for a dozen. If Hank bought 14 dozen of each kind of fruit, how many dollars did he spend? If Hank bought 14 dozen apples, he spent 14*$40 = $<<14*40=560>>560 Hank also spent $50*14 = $<<50*14=700>>700 for 14 dozen pears. The total cost of the fruits that hank bought is $700+$560 = $<<700+560=1260>>1260 #### 1260 Marcus takes a deck of standard playing cards and takes out all the face cards and the 8's. Mark picks a card at random and then replaces it 36 times. How many times should he expect to pick a card that's both red and has a number divisible by 3? Without the face cards and the 8's, there are 9 cards of each suit. Half these cards are red, and 3/9 have numbers divisible by 3, so the odds of drawing a card divisible by 3 are 1/3. Multiply the odds of drawing a red card by the odds of drawing a card divisible by 3 to find the odds of both things happening: 1/3 * 1/2 = 1/6 Finally, multiplying the probability of drawing a red/3-divisible card by the number of cards Mark draws to find how many he should expect to meet his criteria: 1/6 * 36 cards = <<1/6*36=6>>6 cards #### 6