Again this is the like the 5th time trying to get an answer and i am so tired and i just want to sleep but i have to finish this so can someone me with this 7th grade math homework

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?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top