Can you me by showing work on some of them i’m having trouble

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

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Someone me what is the area of this figure? 18m 18m 8m 16m