Katelyn went to the store and brought 2 shirts that were orginally $12 each, but got a 15% discount off each shir. If she has to pay 7% sales tax how much did se=he spend total?

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Using elimination, what is -4x+2y=-12 4x+8y=-24

What is the absolute value of -100000000000000?