Which expressions are equivalent to 2r + (t + r)2r+(t+r)2, r, plus, left parenthesis, t, plus, r, right parenthesis ? Choose all answers that apply:

(Choice A:
2rt + 4r2rt+4r

(Choice B:
r+t

(Choice C:
None of the above

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