Which one do you need help with?
Your answer is C: c = 2.50 + 2.50n
To get this answer I looked at the possible answers and inserted the numbers from the chart to see which fit.
Step-by-step explanation:
50-50+15d =125-50
15d = 75
15d/15=75/15
d=5
He sold 12 coins, 16+28+32+4=80. 15% of 80 is 12
