Item 19 a cylindrical container of four rubber balls has a height of 20 centimeters and a diameter of 5 centimeters. each ball in the container has a radius of 2.5 centimeters. find the amount of space in the container that is not occupied by rubber balls. round your answer to the nearest whole number.

How do i do this activity, is appreciated

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.

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol