The expression 3C2 represents the number of ways of:
a. choosing 2 items at a time from a set of 3. c. arranging, in order, 2 items from a set of 3.
1 b. choosing 3 items at a time from a set of 2. d arranging, in order, 3 items from a set of 2.

3c2 is a combination equation which is used to calculate the number of ways you can choose 2 items out of a total of 3 items.

The answer is:

a. choosing 2 items at a time from a set of 3

the answer is 45 i just did it on oddesy ware

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94