Plzz help me I am timed!

If square root x = -7, then x= -49 true or false

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.

Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?