Usain bolt is considered to be the fastest person on earth. He holds the record for the fastest 100 m (meters), which he ran in 9.8seconds) in 2009. We'll assume that Bolt ran the race at constant speed. Which of the following equations, where t represents time in seconds and d represents distance in meters, describe a greater speed than Bolts record-breaking in 2009? Choose all answers that apply:

(Choice A)
A) d=10t

(Choice B)
B) d=10.2t

(Choice C)
C) d=10.4t

(Choice D)
D) d=10.45t

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4

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.