91Ó°ÊÓ

Simplify. $$ 3-(2 \cdot 4+11) $$

Simplify. $$ 3-11+2 \cdot 4 $$

Determine whether each pair of lines is parallel, perpendicular, or neither. \(x+y=5\) \(x-y=1\)

Evaluate. The area of a parallelogram with base \(b\) and height \(h\) is \(b h\). Find the area of the parallelogram when the height is \(3.5 \mathrm{cm}\) and the base is \(8 \mathrm{cm} .\) (GRAPH CANT COPY)

Evaluate. The area of a triangle with base \(b\) and height \(h\) is \(\frac{1}{2} b h .\) Find the area of the triangle when the height is 2 in. and the base is 6.2 in. (GRAPH CANT COPY)

Multiply. $$ -3(2 x-y+z) $$

Water Usage. Rural Water Company charges a monthly service fee of \(\$ 9.70\) plus a volume charge of \(\$ 2.60\) for every hundred cubic feet of water used. How much water was used if the monthly bill is \(\$ 33.10 ?\)

Translate each problem to an equation. Do not solve. It takes 42 gal of water to produce 1 lb of broccoli. This is twice the amount of water used to produce 1 16 of lettuce. How many gallons of water does it take to produce 1 lb of lettuce?