3. Select each answer that has the same unit rate 12 skirts for $108
30 CDs for $270
2 shirts for $18 each
Please help quick

What are the solutions of the equation? z^2 + 11z + 24 = 0 a. 8, -3 b. 8, 3 c. -8, -3 d. -8, 3

Having a hard time understanding this question (see attachment).

Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?