If the average adult weight is 150 lb and the elevator can hold 1800 lb, how many people, on average, can ride the elevator?

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You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

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