What is the solution to this equation? x^2+3x+7=0

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

Select the number of ways in which a line and a circle can intersect

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?