hey just use symbolad it shows you step by step and gives you the answer.
It is closer to 1/2 because 5/8 is close to 4/8 which is 1/2.
A. C. and E. Are the answers i belive you welcome
-2r= 18
Divide by -2 to get positive r. Divide by -2 for 18.
-2r/-2= 18/-2
Cross out -2 and -2 , then divide by 2.
r= -9
Answer: r= -9