so,it is the answer that you are looking for.please mark me as brainliest.
Let, the missing number = x
Then, 103 + 99 + 90 + 86 + 105 + 96 + x / 7 = 95
579+x = 665
x = 665 - 579
x = 86
In short, Your Answer would be 86
Hope this helps!
62 divided by 8.3 is 7.4
Your answer should be 7.4 gallons