Pls help I’ll brainlest help I’m failing do it on a paper and put it in the answer box

What is the pattern in the values as the exponents increase?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

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! )