3. The parents of a newborn girl want to invest $1000 in some kind of saving plan that their child could use after her 21st birthday. Savings Plan A will increase the amount in the account by $75 per year for
as long as the account is active. Savings Plan B will increase the amount in the account by 5% per year
as long as the account is open

Write an equation for plan A

Write an equation for plan B