Ray invests £9000 in a savings account. The account pays 2.4% compound interest per year.
Work out the value of his investment after 4 years.
Give your answer to the nearest penny.

£9895.60

Step-by-step explanation:

Assuming, interest is compounded annually.

A = p(1+r/n)^nt

A= 9000(1+0.024)^4

A = 9000(1.09951)

A = 9895.60

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6