Yolanda is making a banner for a school pep rally. she cuts fabric in the shape of a parallelogram. the angle at the bottom left corner measures 80°.

the measure of the angle at the top left corner must measure

a. 40°
b. 80°
c. 100°
d. 160°

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

Using inductive reasoning, what is the next two numbers in this set? 1,-7,13,-19 i got the numbers 14,-26 is that right?

Luis has a cooler filled with cans of soda. for every 5 cans of coke there are 3 cans of sprite. if there are 25 cans of coke, how mant cans of sprite are there?