Heyy wanna talk? (I wanna talk bc none of my friends areonline ;-;) (Just incase: 4x 1,000- 300^7 X 9.00+ 456.789)

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