his score was increased... so if he is now at 67 and it was increased by 7 so his first grade would have been 60.
Answer:
Shown below
Step-by-step explanation:
First allocate the power of three to every number
= 
not sure what you mean by positive exponents, the exponents already are positive. Maybe you mean positive exponents and integers?
Answer is <span>A.
{2, 4}
................................................</span>
Complementary angles
Adjacent angles
Correct