Jarvis invests £200 000 in a savings account for 5 years. The account pays compound interest at a rate of 2.5 % per annum.
Calculate the total amount of interest Jarvis will get at the end of 5 years.

if you add its 200,005

if subtract you get 199,995

if you divided you get 40,000

if you multiply you get 1,000,000

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong