Answer:
The answer would be 7.5
Step-by-step explanation:
This is due to if there were to be a chart it would start at 15 then continue by 7.5 which would then lead to 1 hour which is 22.5 min additionally other people are not answering this because you did not give all the information such as the chart etc and the answers unlike me i have the toolds and the questions.
130÷5=26 20÷5=4+26=30 each payed 30 dollars for the buffet
Sorry for my messy handwriting but this is the answer
