33.51 inches
Step by Step: (3.14*2^2)*(8/3)=33.51 inches
8.4 x 10^2 (10 to the 2nd power) = 8.4 x 100 = 840
The answer is A. 840
Answer is -9
Multiplying by 1/4 is the same as dividing by 4
-36(1/4) = -36/4 = -9
8 and 1
8 squared is 64 and 1 squared is 1
64 + 1 = 65
Hope this helps :)