60-75%= 45
So 60-45=15
15 people used credit cards
Step-by-step explanation:
Please refer to the attachment
65 = 12.1+h the flower is 65 inches. it has grown 12.1 inches since the last time he measured it. the last time he measured it, it was height h.
65 = 12.1 + h
subtract 12.1 from both sides
65-12.1 = 12.1 + h- 12.1
52.9 = h
The last time he measured it it was 52.9 inches
20 possibilities based on this as a combination not a permutation, 6 nCr 3 = 20