Abicycle store costs $3300 per month to operate. the store pays an average of $75 per bike. the average selling price of each bicycle is $135. how many bicycles must the store sell each month to break even? 50 points asap

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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

What is the perimeter of an equilateral triangle if each side is (x+3)?