Can someone answer this for me it's kind of confusing for me pls.

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.