Alex calls rashford who is out of the country. her cellphone carrier chargers her $1.20 for the first minute of international calls and $0.65 for every minute after. i she has 2 calls or every 9 minutes and another for 12 minutes, how much was she charged?

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