What is the amount of nickels in the jar?

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.