Calculating for slope:
y2-y1 = m(x2-x1)
7-2 = m(2-1)
m= 5
y=mx+b
y=5x+2
I wrote it down and it would be too difficult to type but i hope this helps
Set up a proportion and then cross multiply to solve. OR. 15/5 = $3 per bag is the unit rate per 1 bag.
Multiply 27*3=$81
7 1/2 x 3 3/4 x 2, to get the answer. The answer is
56 1/4 feet squared
