1. George is at a craft store and sees two types of decorative beads for a project he is working on: blue squares and red circles. The craft store sells these beads by the
pound. The blue squares cost $3.50 per pound, and the red circles cost $1.75 per
pound. George wants to buy as many beads as he can with the $21 he has.
(a) Write an equation that describes the relationship of the pounds of blue
square beads and the pounds of red circle beads that George can buy if he
spends all his money.