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Mathematics, 10.01.2021 07:10 emilylittle2442

PHOTOS The cost of having photos taken includes a sitting fee and S12 for each portrait. The cost of 3, 6, and 9 photos respectively is $51, $87, and $123. What is the sitting fee?
a. S13
b. $15
c. $39
d. $27

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PHOTOS The cost of having photos taken includes a sitting fee and S12 for each portrait. The cost of...
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