At a store, a hat has a regular price of x dollars. During a sale, the price of

the hat is discounted by 30%. The expression 0.7x describes the
discounted price, in dollars, of the hat. Which expression also describes
the discounted price, in dollars, of the hat?

A-0.3x
B-Ox-30
C-x-0.3
D-Ox-0.3x

The correct expression is C) x - 0.3.

During the sale, the price of the hat is discounted by 30%, which means the discounted price is 100% - 30% = 70% of the original price.

In other words, the discounted price is equal to 0.7 times the original price, so the expression for the discounted price is 0.7x.