Answer: 0.514
Step-by-step explanation:

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C. All students in each grade.
Hopefully, this helps you!!

It’s 60 because both lines are parallel
Lets x is the labor charges per hour
3x + 126.53 = 220.28
3x = 220.28 - 126.53
3x = 93.75
x = 93.75 / 3
x = 31.25
answer: $31.25 per hour charged for labor
7/4 = (4 + 3)/4 = 4/4 + 3/4 = 1 + 3/4 =
1 3/4
