"elsie is making a quilt using quilt blocks like the one in the diagram.
a. how many lines of symmetry are there?
b. does the quilt square have rotational symmetry? if so, what is the angle of rotation? "

Country carpets charges $22 per square yard for carpeting, and an additional installation fee of $100. city carpets charges $25 per square yard for the same carpeting, and an additional installation fee of $70

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

The product of two negative rational numbers is always zero sometimes zero never zero