Bert and Ernie are missing each other and their friend Big Bird. They want to meet at Big Birds nest which is halfway from their apartments. The distance from Berts apartment to Big Birds Nest is (5x+4) miles away while Ernies apartment to Big Birds nest is (15x-30) miles away. How far are Bert and Ernies apartments from Big Birds nest.

Secant be and cf intersect at point d inside a what is the measure of cde

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.

Hello, i need compare km^2 and km. what's difference in this?