According to the Internal Revenue Service, the average income tax refund for the 2018 tax year was $2,780. Assume the refund the per person follows the normal probability distribution with a standard deviation of $950. What is the probability that a randomly selected tax return refund from the 2018 tax year will be more than $3,000
a) What is the probability that a randomly selected tac return will be
1) more than $2000?
2) between $1600 and $2500?
3) between $3200 and $4000?
b) Confirm the answers using an excel sheet.
c) What refund amount represents the 35th percentile of tax returns?

Which expression is factored form? x^2+14x+48 a) (x-8)(x-6) b) (x+6)(x-8) c) (x+8)(x-6) d) (x+6)(x+8)

Need solving this second acceleration problem.

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.