Arectangle always has
a) 4 congruent angles and 4 congruent sides
b) two pairs of congruent angles and exactly one pair of parallel sides
c) four congruent angles and two pairs of parallel sides
d) four congruent angles and exactly one pair of parallel sides

An appliance salesman sets a goal to sell an average of 6 appliances per day for the first two weeks of his new job. the dot plot shows the number he sold each day during the first 13 days. what is the minimum number of appliances he must sell on the 14th day in order to reach his goal? a) 5 b) 6 c) 7 d) 8

Which matrix multiplication is possible?

Which best explains why this triangle is or is not a right triangle?