Annie is making designer masks to sell online. It costs her $1,800 to start her business and $2.25 for each mask she produces for up to 250 masks. She plans to charge $18 for each mask she sells.
To determine her profit, she will take how much money she made from selling her masks (Revenue) and subtract how much it cost her (Cost).
If x is the number of masks produced/sold, find
a) C(x), the cost function, and R(x), the revenue function
b) P(x), the profit function if P(x) = R(x) - C(x)
c) What is the least number of masks Annie must sell for her profit to be greater than zero?
d) What is the most profit Annie can make?

Ow does the author reveal katina's initial excitement about her internship? a) by showing how katina responds to conflict b) by describing how katina felt at the end of the day c) by showing how katina interacts with other characters d) by describing how katina selected her clothes with care

Lots of elementary school kids play sports after school. they play soccer, tennis, football, baseball, and even lacrosse. but i think that another great way to spend the afternoon is by playing a non-physical activity: chess. at our school we have a chess club that meets every week to play games and to learn about chess-related issues. chess is a wonderful game for many reasons. chess teaches students to be patient and not rush decisions. chess also teaches students how to strategize their future plans. and finally, chess teaches students the importance and necessity of sacrifice. chess can teach students just as much as any other sport. which sentence could best be added to this paragraph as a supporting detail? a) chess is not as fun as playing a sport outdoors might be. b) my father is very good at chess and plays a game with me every night. c) chess teaches students to think ahead about the consequences of their actions. d) other activities that are as fun as chess are painting, drawing, dancing, and acting.

What is the origin of déjà vu, and what is its meaning?