Suppose line segment XY has one endpoint at X(0,0). If (3,4) is the midpoint of XY, what are the coordinates of point Y?

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Solve the triangle. a = 21°, c = 105°, c = 5

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?