Traveling with the wind the plane to Houston a distance of 800 mi in 5h. The return trip against the wind took 8 h. Calculate the speed of the plane and that of the wind.

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?