What is the answer to ax+z =aw-y if you are solving for a

Which of the binomials below is a factor of this trinominal? x^2-13+30

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

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start