Gabriel determined that his total cost would be represented by 2.5x + 2y β 2. his sister states that the expression should be x + x + 0.5x + y + y β 2. who is correct? explain.
Robin spent 25% more time on his research project than he had planned heβs been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project