Marcus and Lily want to decorate their classrooms by putting a border across the top of two square walls. Marcus's wall has an area of 100 square feet, while Lily's wall has an area of 121 square feet. What are the lengths of their
borders?
Marcus's border is
Lily's border is
feet long.
feet long

I'm so close to finishing all these.

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.

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319