Answer:
D. 42/6 ( 42 divided by 6)
Explanation:
Because the 6 friends are deciding to pay an equal amount each that would mean that each of the amounts they are paying would automatically make this problem addition.
So the equation would be 42 divided by 6 which is 7.60 (rounded of course)
So each friend spent $7.60 each.
Since I figured it out with division, the answer D would be the most logical answer.