What is the area of the triangle?
15 cm
12 cm

What is the equation of a line passing through (-6,5) and having a slope of 1/3

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?

Since we have computer algebra systems that can solve polynomial division problems for us, why is it necessary to learn how to do these things by hand?