Original amount 20

End amount 15

what is the percent change?

Is (x-2) a factor of x^3-4x^2+2x-6

The rate law for a hypothetical reaction is rate = k [A]2. When the concentration is 0.10 moles/liter, the rate is 2.7 * 10-5 M*s-1. What is the value of k? A. 2.7 * 10-3 B. 2.7 * 10-3 M-1s-1 C. 7.2 * 105 M-1s-1 D. 2.7 * 10-4 M-1s-1

What is credit? A. an arrangement in which you receive money, goods, or services now in exchange for the promise of payment later B. an arrangement in which you receive goods or services in exchange for other goods and services C.

Simplify the expression: square root of 3 times the square root of 8

Write a division word problem and explain how to solve it by acting it out.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.