Sorry for the really bad but i really need which this answer

I know it. So if you quadruple your pay of 4 pennies, then you're squaring it (4^2) and if you're doing the same for 3 jobs you're cubing it (4^3) so for nine jobs, you have to raise the 4 to the 9th power (4^9)-answer to the first one. And the final answer is 262,144 pennies

Idon’t feel like doing the math but you need to do 2.24 divided by 7