\( \sqrt{?}=(88 \times 42) \div 16 \) \( \begin{array}{ll}\text { (a) } 3996 & \text { (b) } 39660 \\ \text { (c) } 43163 & \text { (d) } 53361\end{array} \)

Use the order of operations to simplify this expression \( \left(\frac{1}{3}+\frac{5}{12}\right) \cdot \frac{1}{2} \) Question Help: D Post to forum Submit Question

Write \( 2 \frac{4}{7} \) as an improper fraction.

Express the ratio 15 to 20 as a fraction in lowest terms.

Write \( 2 \frac{1}{2} \% \) as a decimal number.

2) The highest temperature ever recorded in the United States was \( 134^{\circ} \mathrm{F} \), measured in Death Valley, CA. The coldest temperature, \( -80^{\circ} \mathrm{F} \), was recorded in Prospect Creek, Alaska. What is the difference between these temperatures?