Find the difference.
(2ab+9a-4) - (ab+2)

What is the definition of exponential decay?

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers