91Ó°ÊÓ

Show a complete solution to each problem. Shawn's shed. Shawn is building a tool shed with a square foundation and has enough siding to cover 32 linear feet of walls. If he leaves a 4 -foot space for a door, then what size foundation would use up all of his siding?

Solve each equation. $$x-0.06 x=50,000$$

Show a complete solution to each problem. Making E85. How much gasoline should be added to 765 gallons of ethanol to get a mixture that is \(85 \%\) ethanol?

Solve each equation. $$-3.48 x+6.981=4.329 x-6.851$$

Explain why the multiplication property of equality does not allow us to multiply each side of an equation by zero.