A square garden has a 20 ft fence surrounding it. How much will it cost to mulch the garden if one bag covers 2.5 square feet and costs $3.99 per bag?

$39.90

Step-by-step explanation:

Ok square, all sides equal.

20ft fence would be perimeter.

Covers is area.

20/4=5

5 is the length of each side.

A=5*5

A=25

one bag=2.5

25=2.5x

x=10

it takes 10 bags of mulch.

10*3.99

$39.90 to cover it all

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

a

step-by-step explanation:

the answer is a