The equation that is given in the question is:
3 (3y - 12) = 0
9y - 36 = 0
9y = 36
y = 36/9
= 4
The value of y in the equation is 4. The correct option among all the options that are given in the question is the first option.
Y = 42.5x + 45.....for 5 hrs.....x = 5
y = 42.5(5) + 45
y = 212.50 + 45
y = 257.50 <===
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