Answer:
1400 ft2
Step-by-step explanation:
if 280 ft2 comes from 4/5 of 1 gallon of paint, then do 280 x 4, because their are 4 gallons of paint. after you x that it will be 1120 ft2. but the extra 1/5 paint from all 4 of the gallons comes out to 4/5 so add 280 ft2 to that 1120 ft2.
it comes out to 1400 ft2.
56
Divide 280 by 4/5 and get 14 then multiply by 4 and get 56
2.56 = 30
b = 12
(Sorry if I’m wrong! I speeded on it.)
y=-4x+9
y-y1=m(x-x1)
y-(-3)=-4(x-3)
y+3=-4(x-3)
y=-4x+12-3
y=1/2x+5
y=1/2x+c
5=1/2(0) +c
5=0+c
5=c