Running shoes originally cost $50. After a discount, the shoes cost $35. What is the percent decrease for the shoes?

Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Could somebody me with this radical simplification?