Dalia has 484 quarters. she has 172 quarters in a bag. she has 33 quarters in a box. the rest of the quarters are in her piggy bank . how many quarters are in dalia's piggy bank

a. 279

b. 693

c. 345

d. 281

Find the cosine function that is represented in the graph.

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

What is the result of adding the system of equations? 2x+y=4 3x-y=6