a store is having a 20% off sale on all merchandise. if mai buys one item and saves $13, what was the original price of her purchase

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.