Answer this question:Mrs. Petersons bought 10 tumblers for $45 each. She paid with five $100 bills. How much change will Mrs. Petersons receive?
The 10 tumblers amount to $45 x 10 = $450. Mrs. Petersons paid $100 x 5 = $500. So, her change will be $500 - $450 = $50.
The answer is 50.

Answer this question:Alice made 52 friendship bracelets over spring break to sell at school. It only cost her $3.00 in materials to make these bracelets. During the break, she gave 8 of her bracelets away. Back at school, she sells all of the remaining bracelets at $0.25 each. How much profit did she make (money earned after paying initial costs) on the sale of her bracelets?
She made 52 bracelets but gave 8 away so she had 50 - 8 = 44 bracelets left. She sold 44 bracelets at $0.25 each for a total of 44 * .25 = $11.00. She made $11.00 but she spent $3.00 on the supplies. So her profit would be 11 - 3 = $8.00.
The answer is 8.

Answer this question:A herring has 40 oz of fat, an eel 20 oz, and a pike 10 more oz of fat than an eel. If Ellianna cooked and served 40 fish of each type, calculate how many ounces of fat she served.
Ellianna cooking 40 herrings with 40 oz of fat each gives her 40 * 40 = 1600 oz of fat. If Ellianna also cooked 40 eels with 20 oz of fat each, she got 40 * 20 = 800 0z of fat. All the herrings and eels together have a total fat content of 1600 + 800 = 2400 oz of fat. A pike, with 10 more oz of fat than an eel, has 10 + 20 = 30 oz of fat. Cooking 40 pikes gives 40 * 30 = 1200 oz of fat. Since Ellianna cooked all the fish, she had 1200 + 2400 = 3600 oz of fat in her serving.
The answer is 3600.

Answer this question:Marla has a grid of squares that has 10 rows and 15 squares in each row. She colors 4 rows of 6 squares in the middle of the grid with red. She colors all squares on the first 2 and last 2 rows with blue. Then she colors the rest with green. How many squares does Marla color green?
There are 10 x 15 = 150 squares in a grid. 4 x 6 = 24 squares are colored red. There are 2 + 2 = 4 rows that are all blue. Thus, a total of 4 x 15 = 60 squares are colored blue. 24 + 60 = 84 squares are color red or blue. Therefore, 150 - 84 = 66 square are green.
The answer is 66.