There are 20 pens in a package. ten of the pens are black, 8 are blue, and the rest are red. which ratio represents the number of red pens to black pens?
a.1/10
b.1/5
c.4/5
d.5/1

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.