Jonathan sells 34 of his used CDs for $8.49 each. He also sells 13 vinyl records for $3.15 each. He gets a 20% bonus for the cost of the records because they are unscratched. How much did Jonathan earn from selling his used CDs and records?

Question

anonymous · Answer

Ok so first lets find the total of the CDs/
8.49 * 34
Next we will calculate the vinyl. 3.15 *13 
Let x represent the total of the cds and y represent the total of the vinyl after his bonous.
After solving we would add x+y

anonymous · Answer

i came up with this equation : 34 * 8.49 + (13 * 3.15) - .2 ; 288.66 + 40.95

anonymous · Answer

So 8.49 = 288.66
3.15*13 = 40.95 
40.95* .2 = 8.19
40.95 + 8.19 = 49.14
288.66+49.14 = 337.8
So he earns $337.80

anonymous · Answer

Ohh my gosh I totally forgot to multiply by .2 im sorry

anonymous · Answer

Haha well do you understand what I did?

anonymous · Answer

yes i do