This diagram represents a function named h. Which of the choices also represents the function, h?

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

Me. i can't figure out this question. give an explanation too. .

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8