Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Write a mathematical expression for the quantity described verbally.
-Sale price of an item marked $x$ dollars, if $70 \%$ is discounted from the marked price

A) $0.3 x$
B) $x - 70$
C) $1.7 x$
D) $x - 0.7$