Question 1181377
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(a) A soda machine services must restock and collect money from 15 machines, each one at a different location.  
    How many ways can she select four machines to service in one day? 

(b) A beachfront candy store allows customers to select 3 different candies to be packaged and mailed.  
    If there are 10 varieties available, how many possible selections can be made? 

(c) A professional glam squad stylist has one of three nail-polish colors, one of five lipstick shades, 
    and one of four blush shades, how many different combinations can she make? 
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Of the three posted problems, I will solve only two, (b) and (c)



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(b)  10*9*8 = 720 possible selections.        <U>ANSWER</U>


     The product of 3 consecutive integer numbers, starting from 10 in descending order.



(c)  3*5*4 = 60  different combinations.      <U>ANSWER</U>


     Fundamental counting principle.
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Solved.