#6 evaluate the expression below when c = 3. -c - 2c / c #7 find the volume of the rectangular prism. 5 cm 6…

#6 evaluate the expression below when c = 3. -c - 2c / c #7 find the volume of the rectangular prism. 5 cm 6 cm 7 cm

Answer

First, combine like - terms in the numerator: $-c-2c=-3c$. So the expression becomes $\frac{-3c}{c}$.

Cancel out the common factor $c$ (since $c = 3\neq0$), and we get $\frac{-3c}{c}=-3$.

-3

The volume formula for a rectangular prism is $V = l\times w\times h$, where $l$ is the length, $w$ is the width, and $h$ is the height.

Given $l = 6$ cm, $w = 5$ cm, and $h = 7$ cm. Then $V=6\times5\times7$.

$6\times5 = 30$, and $30\times7=210$ $cm^{3}$.

$210$ $cm^{3}$