16 Ashley was given $4000 when she turned 2 years old. Her parents
invested it at a 3% interest rate compounded annually. No deposits or
withdrawals were made. Which expression can be used to determine
how much money Ashley had in the account when she turned 18?
(1) 4000(1 -.03)
(2) 4000(1 +.03)
(3) 4000(1 +.03)
(4) 4000(1 -.03)
16
18
18

she will have 4000(1+.03) when she turns 18

Given:

Let X and Y be two sets.

The two sets are given by and

We need to determine the value of the set

Value of the set :

The value of the set is the set that contains all the elements that are at least in one of the two sets.

Hence, the union of the set is given by

Arranging in ascending order, we get;

Thus, the union of the sets X and Y is