I NEED HELP ON QUESTIONS 1 &2 HELPPP PLS

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

The function models the number of accidents per 50 million miles driven as a function

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2