A radioactive substance decays exponentially. A scientist begins with 100 milligrams of a radioactive substance. After 27 hours, 50 mg of the substance remains. How many milligrams will remain after 36 hours?

If three men working at the same hourly rate are paid a total of $52.08 for a day's work, how much should be paid to five men at the same hourly rate? 86.80 156.24 260.40

A school's math and science clubs are selling laundry soap bars to raise money to buy new calculators. The profit for each sold bar is $14. The math club sells 120 bars, and the science club sells 112 bars.

What is the volume of the largest box that can be made from a square piece of cardboard with side lengths of 24 inches by cutting equal squares from each corner and turning up the sides?

What is 6 (x+9) = 5 (x+4

The concept of aging as a result of cellular duplication errors is based on the fact that the body's ability to make new cells that are exact copies of the original ones: a. stops at about age 80. b. continues unchanged throughout life. c.

Name a fraction equivalent to 2/3

The teacher has 15 gold prize ribbons, 22 blue ribbons, and 5e red ribbons. There are 12 boys and 18 girls in the class.

3 (6x^2-5x+7) - 2 (-4x^2+8-10)

A model ship is built to a scale of 1 centimeter: 5 meters

Simply: x^3 y^3 / x^3 y^2 (the arrows mean to the power of the number)