A school choir needs to make T-shirts for its 75 members and has set aside some money in their budget to pay for them. The members of the choir
decided to order from a printing company that charges $3 per shirt, plus a
$50 fee for each color to be printed on the shirts.
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(The fee applies to the order, not to individual shirts)
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In this situation, which quantities do you think can vary (change)?

A) the number of shirts ordered
B) the cost of each shirt
C) the cost of each printing color
D) the number of colors on a shirt
E) the total cost of the order

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

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.