What is a number that represents part of a whole or part of a set?

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

It says factor each expression completely 8y+48

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students