A twin-engined aircraft can fly 816 miles from city A to city B in 4 hours with the wind and make the return trip in 6 hours against the wind. What is the speed of the wind?

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2

Gia opened two savings accounts at two different banks. one account earns an annual 3.4% simple interest, and the other earns half as much. if she deposited $500 in each account, how much total interest will she have earned in 5 years? a. $34.00 b. $25.50 c. $51.00 d. $510.00