Help me asap please!

Write and solve a real word problem that involves determining distance on a coordinate plane

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b