Perform Each Computation, Keeping the Proper Number of Digits in Your

Short Answer

Perform each computation, keeping the proper number of digits in your answer.
(a) $\sqrt{86.334-49.251+0.703}$
(b) $\sqrt{74.8}-\sqrt[3]{9.01}+\sqrt[5]{-5.05}$
(c) $\left(\frac{5.6+7.24}{\sqrt{25.6}}\right)^{3}$