I need all of it 21-24 and 24 needs any choices that apply to it

Which of the following represents the range of the graph of f(x) below

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

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?