Let X and Y be the following sets: X = {1,3,5,7}
Y = {2,4,6,8}.
Which of the following is the set X∪Y?
A- {2,4,6,8}
B-{1,3,5,7}
C-{1,2,3,4,5,6,7,8}
D- {}

The area of a 25-inch tv screen is 300 square inches. the area of a 40-inch tv screen is 768 square inches. the are of the smaller screen is what percent of the area of the larger screen?

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.