Help me out here please.

D

Step-by-step explanation:

13/20 - 7/20

The rule is to make the denominators equal. In this question they are, so you don't have to do this step for this question.

Then subtract the numerators.

13 - 7 = 6

Put that over the common denominator.

6/20

But that is not the final answer.

3/10 is the final answer.

I believe that's D

well we know there are 4 clubs in 52 cards so it’s replaced so it should be 3/51

step-by-step explanation:

part a: 1.08

part b: 27.59