It took sergio 3 hours to read 7 chapters of a book. if he continues reading at a constant rate and the chapters are similar in length, how many hours will it take sergio to complete the entire book if it is 15 chapters long?

Pleasse me i need an answer. give me the correct answer. answer if you know it ! the club will base its decision about whether to increase the budget for the indoor rock climbing facility on the analysis of its usage. the decision to increase the budget will depend on whether members are using the indoor facility at least two times a week. use the best measure of center for both data sets to determine whether the club should increase the budget. assume there are four weeks in a month. if you think the data is inconclusive, explain why.