Answer:
answer is attached in the image below
The answer will be C. the total number of hours Marta spends swimming each visit. Hope it help!
81 + 70 + x = 3(73)
first multiply 3(73)
81 + 70 + x = 219
combine like terms
151 + x = 219
subtract 151 from both sides
x = 68
Joaquin needs to score a 68 on her next test to maintain an average of 73.
