Simplify this expression.

3x2(7x2 − 9)

What is the difference between the equations of a vertical and a horizontal line?

In a young single person's monthly budget, $150 is spent on food, $175 is spent on housing, and $175 is spend on other items. suppose you drew a circle graph to represent this information, what percent of the graph represents housing?

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18