A motorboat travels 343 kilometers in 7 hours going upstream and 594 kilometers in 6 hours going downstream. what is the rate of the boat in Stillwater and what is the rate of the current.

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1

Is the power produced directly proportional to the wind speed, give reasons for your answer?

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! )