Theresa has $50 In her wallet. The bills are worth either $5 or $1. If there are

18 bills total, how many does she have of each type?

There are 8, 5$ bills. And there are 10, 1$ bills.

Step-by-step explanation:

1 - 5

2 - 10

3 - 15

4 - 20

5 - 21

6 - 22

7 - 23

8 - 24

9 - 25

10 - 30

11 - 35

12 - 40

13 - 45

14 - 46

15 - 47

16 - 48

17 - 49

18 - 50

She should have 8 $5 and 10 $1 because 8 x 5 = 40 and 10 x 1 = 10 and if you add 40 + 10 you get 50