Question 644223
 at music warehouse, the regular price for a CD is d dollars.
 How many CDs can be purchased there for m dollars when the CDs are on sale
 at 20% off the regular price?
:
Let me unconfuse you here,
 the no. that can be purchased without the discount would be
 total amt you have, divided by the cost of each cd: {{{m/d}}}
:
When each cd is discounted 20%, the cost then = .8d, therefore:
no. of cds = {{{m/(.8d)}}} but the way they put it, .8 = 4/5, therefore
It would be: b {{{(4m)/(5d)}}}