Using A Calculator

Question 1:

\sqrt{98.31}

9.9151399384981

Question 2:

\sqrt[5]{424.4}

3.3539383471607

Question 3:

\frac{8.73 + 7.7}{3.78 - 6.55}

-5.9314079422383

Question 4:

\frac{{6.2}^{2}}{\sqrt{{7.7}^{2} + {8.5}^{3}}}

1.4812964637643