Pedro cut a sheet of poster board into 10 equal parts. His brother used some of the poster board and now 7/10 is left. Pedro wants to make a sign from each remaining part of the poster board. How many signs can he make?

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected