Can someone show me the solution to this please

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

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

How can constraints be used to model a real-world situation?