Tina earned 218.40 pounds in July with her student work, Lea 98.20 pounds, and Meta 101.60 pounds. In August, Tina earned a fifth less, Lea increased her earnings by 15%, and Meta earned the same amount as in July.
Calculate the missing values and fill in the table.
Calculate the average earnings of the girls in July and in August. Calculate by how many pounds the average August earnings of the girls were lower than the average earnings in July.
Meta invested her entire earnings in a bank that pays interest at the annual interest rate of 2.5% with an annual accrual of interest. Calculate how many more pounds she will have in four years.
