7*24 = 168 quarts of water per day goes into barrel.
25*48 = 1200 quarts of waste water picked up
1200÷168 =7.142857143
Answer:
6.48%
Step-by-step explanation:
t - c = b
t = 31.93
c = 29.99
b = 31.93 - 29.99
b = 6.48%
The average score for the entire year is 88.44444, so by rounding down the answer is 88%
The given terms are two terms apart, so their difference is twice the difference of adjacent terms.

The value of d is 4.