Emory used these steps to solve the equation. X+7=3x+(-5). 1. Add 1 negative x-tile to both sides and create zero pairs 2. Add 7 negative unit tiles to both sides and create zero pairs

3. Divide the 12 negative unit tiles evenly among the 2 x-tiles

4. The solution is x = -6

In which step did Emory make an error?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet