1. <span>4x – 20 = 5y
so 5y = </span><span>4x – 20
divide both sides by 5
y = (4/5)x - 4
2. x-intercept is at y=0
so (4/5)x - 4 = 0
x = 5
so it is (5,0)
3. y-intercept is at x=0, y = 0 - 4 = -4
so it is (0,-4)
</span>
12*14*3= 504 square feet
504/42= 12
C. 12 rolls
Step-by-step explanation:
b=a-80
c=b-61
c=a-141
a+b+c=3a-221=430
3a=651
a=217 & b =137 & c=76
Um im tryin to see if thats the right answer
Answer:
$36.25
Step-by-step explanation:
Surface area: 2*l*w+2*w*h+2*h*l
2*2*2.5+2*2.5*0.5+2*0.5*2
10+2.5+2
14.5 sq. ft.
14.5*2.50=36.25