A store has a sale where every item has a sale price that is 10% less than the regular price. Write an expression that represents the sale price of an item if the regular price is p dollars." London said, "To find 10% of a number, I should multiply by 0.10. So the sale price of an item will be 0.10p."

Which statement best describes London's reasoning?

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

the answer to your question is minor arc.