The 20% discount on a $55 on a sweatshirt

Solve the system by the elimination method. 3x - 2y - 7 = 0 5x + y - 3 = 0 to eliminate y, the lcm is 2. which of the following is the resulting equations? 1.3x - 2y - 7 = 0 5x + y - 3 = 0 2.3x - 2y - 7 = 0 -10x - 2y + 6 = 0 3.3x - 2y - 7 = 0 10x + 2y - 6 = 0

What is the range of the data below? .8090100

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?