Answer:
A 1
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7*7*7*7*7*7
Step-by-step explanation:
(7^3)^-2
We know that a^b^c = a^ (b*c)
7^(3*-2)
7^ -6
The negative exponent move it to the denominator
1/7^6
1
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7*7*7*7*7*7
Answer:
3.24 years
Step-by-step explanation:
We know that for the truck to become half of the value it has to decrease by %50 if it decreases by %15.4 the real question is 50/15.4=3.24 years because how many years will it take for %15.4 to pile up and eventually become %50