Using A Calculator

Question 1:

\sqrt{72.92}

8.5393208160837

Question 2:

\sqrt[4]{1834}

6.544098578928

Question 3:

\frac{9.96 + 6.84}{1.6 - 3.9}

-7.304347826087

Question 4:

\frac{{4.6}^{2}}{\sqrt{{6.9}^{2} + {2.1}^{3}}}

2.8058873490668