Jason is buying grapes for a picnic. Green grapes cost $2 a pound and red grapes cost $3 a pound. He plans to buy at least 4 pounds of grapes and spend no more than $20. Let x be the number of pounds of green grapes and y be the number of pounds of red grapes. This system and its graph is shown below. x+y4
2x+3y20

What are the constraints on each variable? Explain your thinking.

Scenario: susan wants to make 2 square flags to sell at a crafts fair. the fabric she wants to buy is 3 meters wide. she doesn't want any fabric left over. what's the least amount of fabric she should buy? question: which equation will susan solve her problem? note: let x represent the length of 1 side of the flag. options: 1) 3x^2 -2x =0 2) 2x^2 =3x 3) 2 * 2 = 2 * 2 4) 6 +2x = 2(4x)