last month I joined an online strategy game. when I joined there were 20 members, since then the number of members has decreased by 80% how many members are there now​

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

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.