Math
posted by Taylor .
"All Items 20% Off Marked Price" is a sign at a local golf pro shop. Create a function and then use it to determine how much one has to pay for each of the following marked items: a $9.40 hat, a $13 umbrella, a $65 pair of golf shoes, a $12.60 golf glove, a $750 set of golf clubs.

80% times the price(x)
.8x