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1. The value of $2 + \sqrt{0.09} - \sqrt[3]{0.008} - 75 %$ of 2.80 is = ?

A. 0

B. 0.01

C. -1

D. 0.001

Solution:

\begin{aligned} 2 + \sqrt{0.09} - \sqrt[3]{0.008} - 75 % of 2.80 \\ = 2 + 0.3 - 0.2 - (\frac{3}{4} \times 2.8) \\ = 2 + 0.3 - 0.2 - 2.10 \\ = 2.3 - 2.3 \\ = 0 \end{aligned}

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