Mr. yarmus purchased 3 cups of coffee for his friends. he paid $7.29 in total, including an 8 percent sales in tax. what was the cost per cup of coffee, excluding plzz i will give you 100 pointd

  $2.25

Step-by-step explanation:

Let c represent the cost of a cup of coffee. Then the total amount paid for 3 cups is ...

  3c + 3c·0.08 = 7.29

  3.24c = 7.29

  c = 7.29/3.24 = 2.25

A cup of coffee costs $2.25.

Comment on "I will give you 100 pointd"

I don't know what a "pointd" is, but I suggest you not make promises you cannot keep.

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.