Edwin has £300 in his saving account His bank offers him a fixed 5% simple interest rate per annum for a period of 3 years
How much interest will he have earned after 3 years ?

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.