A, because it declines at a steady ratw
140x 0.3= 42
140- 42= 98
So A. $98 is correct.
The answer is 0.3 (1/3.)
Proof?
f(0.3) = 18(0.3) + 8
f(0.3) = 6 + 8
f(0.3) = 14
14 = 14
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She delivers it to house 2