-3x + 14 = 7x-7
Pls hel

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.

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

What is the answer to the question 5x+2x