Carrots sell for $2.10 per pound, and crackers sell for $2.90 per pound. glen bought some carrots and some crackers. the total weight was 2.3 pounds and cost $6.03. let p represent the number of pounds of carrots glen purchased. which expression represents the number of pounds of crackers he purchases?

a. 2.3p b. 2.3 – p c. p + 2.3 d. p – 2.3