How old is joe if he is 27 years younger than bob who is 900090090990909909090909090 free brianliest for anyone

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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?

Can someone me and do the problem plz so i can understand it more better