Two 7th grade students, Betty and Tami, both solved the following math problem: If the temperature drops from 10%
F to -7° F, by how much did the temperature change?
The students came up with different answers. Betty said
the temperature decreased by 17°F, and Tami said the
temperature decreased by 3°F. Who is correct?
A) Betty
B) Tami
C) Neither
D) Both

Grandma made an apple pie. josh and his brother joe finished 4/5 of it. then 3 friends came over and shared the left over. how much pie did each friend eat

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.

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2