Answer:

Step-by-step explanation:
I did this before. Also sometimes once I look at the question I just find out the answer without steps.
Answer:
11.581 years
Step-by-step explanation:
Formula:

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>
7.39682 is the answer since one liter is equal to 1.05669 quarts
1.05669 x 7 = 7.39682
therefore, the answer is 7.39682
45 x 5 = 225 minutes per week
225 x 36 = 8,100 minutes per school year