If there are 221 students in each group and they are even groups how many students will be in each group

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?