Answer:
Infinity (∞)
Step-by-step explanation:
Graph the function and observe that the function P(t) increases without bound as x increases.
You save 36 dollars.
30% of 120 is 36.
You spend $84
f(3)= 5(3)-8= 15-8= 7
f(0)= 5(0)-8= 0-8= -8
f(4z)= 5(4z) - 8 = 20z - 8