The given final course grade, 88%, is the average of Frank's four quarter grades. The average is the sum of all grades divided among the four quarters. Let x be the average,
(82.5 + 94.7 + 87.9 + x) / 4 = 88
The value of x is equal to 86.9. Thus, the answer is letter C. 87%.
Answer:
C. 3(x+5)
Step-by-step explanation:
hope this helps
Answer:
I say C is your best answer because it might be a typo
