Answer:
Explanation:
You get 4 pennies for a first job, 16 pennies for the second job, 64 pennies for the 3rd job, and you want to know how many pennies you get for the 9th job, if each job quadruples the pay.
Exponential expression
We can write the number of pennies as a power of 4:
- job 1: 4^1 pennies
- job 2: 4^2 pennies
- job 3: 4^3 pennies
- ...
- job 9: 4^9 pennies
You will get 4^9 pennies for the 9th job.
That is 262144 pennies.
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