Please a need help ASAP

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

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Simplify. 3(4+4x) (type your answer in with no spaces)