Sarabeth is selling bracelets as a fundraiser for the school library. each bracelet with blue beads sells for $4.50. each bracelet with red beads sells for $5. she raised a total of $130 for the library. the number of bracelets with red beads (r) that sarabeth sold is 3 less than twice the number of bracelets with blue beads (b) sold. if the table is used to guess and check, what equation should go in the top of the third column?