91Ó°ÊÓ

Evaluate the power.

${(0.3)}^3$

Evaluate the expression$\frac{9.8+2.2}{7−5}$.

Use a number line to find the sum.

– 4 + 13

Evaluate the expression when$x=20\text{and}y=5$.

$3(x−y)$

Volcanoes The elevation of the top of a volcano relative to sea level is called the summit elevation. The summit elevation of Kilauea in Hawaii is 1222 meters. The summit elevation of the underwater volcano Loihi in the Pacific Ocean is –980 meters. Which is farther from sea level, the top of Kilauea or the top of Loihi?

Use a number line to find the sum.

– 9 + (– 5)

Copy and complete the statement using < or >.

$−9\underset{¯}{\text{​â¶Ä‹â¶Ä‰â¶Ä‰}?\text{ â¶Ä‰}}−12$

Explain why the absolute value of a number is never negative.

When you divide one number by another, the result is called the $\underset{¯}{?}$

Explain how these vocabulary terms are related: power, base, exponent.