18) Abhasra took a trip to Malaysia. Upon leaving she decided to convert all of her
Ringgits back into dollars. How many
dollars did she receive if she exchanged 24
Ringgits at a rate of 4 Ringgits to $1?

6 dollars

Step-by-step explanation:

its math

45

Step-by-step explanation:

The order in which the items are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

is the number of different combinations of x objects from a set of n elements, given by the following formula.

How many possible subsets of 2 items can be chosen from this lot?

Combinations of 2 from a set of 10. So