If the half-life of a substance is 2 days, what is the amount of substance left at the end of 4 days?

If 75 is added to a number, the result is 39 less than three times the number. find the number

If y varies directly with x and y = 12 when x=11 what is the constant of variation k?

How to round 7,298,341 to the nearest 10,000

There are 80 ounces of cheese at the grocery store to be split into 1-pound packages. How many packages of cheese will there be?

The sides of a triangle are in the ratio 5:12:13. what is the length of each side of the triangle if the perimeter of the triangke is 15 inches

How to convert 21/25 into 84% Convert 17/20 into 85% What number over 30 equals 80%

Find the mean of this set of numbers. 9, - 6, - 8, 11, - 4, 10 A. 12 B. 2 C. 8 D. 48

Krystal made 8 quarts of soup on Monday, 5 quarts of soup on Tuesday, and 5 quarts of soup on Wednesday. if she serves each guest 1 cup of soup, how many quest can she serve in all.

One and five twelves minus five sixtes

How much total wrapping paper does it take to wrap two gifts: one with the dimensions of 6 cm by 10 cm by 9.5 cm and the other with dimensions 14 cm by 17.25 cm by 15 cm.