Ahomeowner must reduce the use of his homes electricity . the home currently consumes 25.7 kwh (kilowatt hours) of electricity per day , and the homeowner must reduce the use by 20% . find the amount of electricity that will be used after the reduction in two differnt ways, using two differnt scale

You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?