The number of people (n) who will attend a dance depends on the admission price (p) in dollars. the relationship is represented by the equation shown below. n = 800 -50p

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?