Which expression is equivalent to 8x − 2x + 4 and why

Find the length of cu, the triangles are similar.

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

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6