Are the equations sometimes, always, or never true?
a. 15 + 2x − 4 = 9x + 11 − 7x
b. 2x + 3(4x − 1) = 2(5x + 3) + 4x

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

Which expression and diagram represent “renee biked four times as far this month as last month”?

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.