Final answer:
To simplify the expression 6r-2 + Gr+2, combine like terms by adding the coefficients of the 'r' variable.
Step-by-step explanation:
To simplify the expression 6r-2 + Gr+2, we can combine like terms. Like terms are terms that have the same variables raised to the same powers. In this case, both terms have the variable 'r' raised to the power of 1, so we can combine them. The simplified expression would be 7r + Gr+2. Therefore, the answer is D) 7r+2G.