Practice Problems Multiple-
1. Ifa. O and the sum of x and is o, then
(1)x-a
(2) x-a
(3) x
(4)x - 1-a

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