A photo-mat shop charges $0.60 for the first photo inside a film, and 40% cents less for each additional photo. How many photos can we develop with $42 if each film contains 36 photos? Choose the correct choice from the following options: A) 3 films and 6 photos B) 5 films and 6 photos C) 5 films and 14 photos D) 6 films and 4 photos E) 6 films and 28 photos
1st photo = 0.60   Subsequent = 0.6*0.6= 
<gadget id="calculator">0.6*0.6</gadget>
<output>0.36</output>
0.36   Price of 1 full film=0.6+0.36*35= 
<gadget id="calculator">0.6+0.36*35</gadget>
<output>13.2</output>
13.2   Price of 3 full film= 13.2*3= 
<gadget id="calculator">13.2*3</gadget>
<output>39.6</output>
39.6   42-39.6= 
<gadget id="calculator">42-39.6</gadget>
<output>2.4</output>
2.4   2.4=0.6+0.36x   x=5   42---&gt;3 full films and  1+5= 
<gadget id="calculator"> 1+5</gadget>
<output>6</output>
6 photos   3 films and 6 photosnswer: 3 films and 6 photos
<result>A</result>
A photo-mat shop charges $0.60 for the first photo inside a film, and 40% cents less for each additional photo. How many photos can we develop with $42 if each film contains 36 photos?