Convert to slope intercept form to graph 4x + 3y = 9

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.

Here is another math questions. i will keep asking different questions. 4^2x=6

2x + 3y = 17 5x + 6y = 32 usibg method if elimination