X + y = 8 and x - y = -2
Substitution or elimination need help doing problem

What is 32+4 x (16 x 1/2) -2 show your work}

Write the following as a base and exponent

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