How much would something cost if it was $20 but was 1/5 percent off??

Regular price 75$ discount 25%sale price?

The reflexive property of congruence lets you say that ∠pqr ≅

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.