Help plss i will mark brainliest

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 is equivalent to -12(3x-3/4)

If f(x)=3 over x+2 - square root x-3 then f(7)=