Answer:
x=1850
Step-by-step explanation:
C(x) is a stand-in for total cost
since we are given the total cost we can replace the variable with its value
385000=107500+150x
now all we have to do is solve
start by subtracting 107500 from both sides
385000=107500+150x
277500=150x
now we finish solving by dividing both sides by 150
277500=150x
x=1850
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