Which situation represents a proportional relationship? Select one:

A local swimming pool charges $5 per visit. There is also a $15 yearly registration fee. The total cost is proportional to the total number of days visited.

A soccer club has 15 players on every team, except for three teams which have 18 players. The number of players is proportional to the number of teams.

A bookshelf holds 25 books. The total number of books is proportional to the number of shelves in the bookcase.

Mary had $100 in the bank and each week she deposits an additional $12. The amount in her account is proportional to the number of weeks she started saving.

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In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.