30). 35=.15x+3                       Equation
     32=.15x                         Subtract 3 from both sides
     213.3333333=x                   Divide by 0.15 on both sides
     35=0.15(213.3333333)+3           Plug in for X
     35=32+3                         Distribute 0.15 into 213.33...
     35=35                            Simplify
Therefore she can get about 213 pictures.Â
31). 226.5= 25(11am-6:30pm)+x         Equation
    226.5=25(7.5)+x                  Find out how many hours
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    226.5=187.5+x                  distribute the 25 into the parenthesis
    39=x                             Subtract 187.5Â
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    226.5=25(7.5)+39                Plug in for x
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    226.5=187.5+39                   Distribute 25 into parenthesis
    226.5=226.5                      simplify
we've established that the one time fee it 39 so
   y=25(8am-1pm)+39                 Equation
   y=25(5)+39                        Find amout of hours
   y= 125+39                        Distribute 25 into 5
   y=164                            simplify
therefore the jones family payed $164
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