Armando also thinks the first question should be worth $5, however, he thinks a contestant's winnings should double with each subsequent correct answer.

For Armando's proposal, what equation gives the total prize for correctly answering n questions?

Question

Armando also thinks the first question should be worth $5, however, he thinks a contestant's winnings should double with each subsequent correct answer.

For Armando's proposal, what equation gives the total prize for correctly answering n questions?

sparrow2 · Answer

i thinks it is 5(1+2^1+2^2+2^3+...+2^N)