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?

Restrictions on f(x) = 1/x+5 and g(x) = x-2

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?