panda456ruizxiom panda456ruizxiom 14-04-2021 Mathematics contestada The cost of buying 1 DVD is $19.99. The cost of buying 1 CD is $9.99. The cost of buying 3 DVDs and 5 CDs is given by the expression 3 x 19.99 + 5 x 9.99. What is the total cost?