Answer:
f(x) = 9x + 45
Step-by-step explanation:
Pretty sure this is the answer, but that assumes he's only traveling once.
-15
x2 – 2(x - y) – 23
if x = -3, y = 4 and z = -1
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-3 x 2- (-3 - 4) - 23
it's 60
I have done that before
