Tyler’s mom also has $1000 that she wants to put in a savings account. She is saving her money for retirement. She plans to retire in 30 years. Tyler’s mom must also choose between Bank A and Bank B. Bank A offers 4% simple interest. How much would Tyler’s mom’s investment be worth after 30 years in this account? Show your calculations below.

The amount of interest earned will be ...
  I = Prt
  I = $1000*0.04*30
  I = $1200

The amount in the account will be the sum of the principal amount and the interest it earns:
  $1000 +$1200 = $2200

Tyler's mom's investment will be worth $2200 in this account.