The answer in fraction form is exactly 1/13 The approximate answer in decimal form is 0.076923
To get this answer, note how there are four cards that have "2" on them. This is out of 52 total. So we divide the values: 4/52 = 1/13. Don't forget to fully reduce as much as possible.
To go from 1/13 to 0.076923, you would use a calculator or long division
On Part A you have to subtract $2.39-$1.99. Then in Part B you have to multiply $4.50 by 2. And then I think you have to add $3.79 when u are done multiplying.