Consider the sequence of numbers a0, a1, a2, a3, . . given by a0 = 2, a1 = 3, and for any positive integer k ⥠2, ak = 3akâ1 â 2akâ2. prove that for all positive integers n, an = 2n + 1.

What is the 12th term of b(n)=-4-2(n-1)

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )