91Ó°ÊÓ

Translate and simplify the sum of$-8$and$-12$, increased by 7.

In the following exercises, simplify.

$-\frac{104}{48}$

The temperature in Anchorage, Alaska one morning was 15 degrees. By mid-afternoon, the temperature had dropped to 30 degrees below zero. What was the difference in the morning and afternoon temperatures?

In the following exercise, simplify.

$\frac{120}{252}$

The temperature in Denver was $-6$ degrees at lunchtime. By sunset, the temperature had dropped to$-15$ degrees. What was the difference in the lunchtime and sunset temperatures?

In the following exercises, simplify.

$\frac{182}{294}$

Simplify$-\frac{69}{120}$.

In the following exercises, simplify.

$\frac{14x^2}{21y}$

Simplify$-\frac{120}{192}$.

In the following exercises, simplify.

$\frac{24a}{32b^2}$