STAAR Grade 5 Geometry and Measurement. Practice it free.

The $x$-axis is the horizontal number line on the coordinate plane.

Area $A = \ell w$, so $56 = 8w$. Dividing gives $w = 7\text{ cm}\textsf{.}$

Volume $= l \cdot w \cdot h = 7 \cdot 5 \cdot 1 = 35$ cubic m.

The first number in an ordered pair is the $x$-coordinate. In $(1, 4)$ the $x$-coordinate is $1\textsf{.}$

A square has $4$ equal sides, so $P = 4s$. Then $s = \dfrac{100}{4} = 25\text{ in}\textsf{.}$

Apply $V = l \cdot w \cdot h$: $1 \cdot 7 \cdot 10 = 70$.

The $y$-axis is the vertical number line on the coordinate plane.

Perimeter $P = 2\ell + 2w$, so $40 = 2(8) + 2w$. Then $40 = 16 + 2w$, so $2w = 24$ and $w = 12\text{ cm}\textsf{.}$