How many 1/2 cup servings are in 6 cups of grapes?

How to write 3 tenths and 5 tenths as a decimal

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

Ineed to find the answer to number 2