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The cost y (in dollars0 to provide food for guests at a dinner party is proportional to the number x of guests attending the party. it costs $30 to provide food for 4 guests. a. Write an equation that represents the situation. b. Interpret the slope. c. How much does it cost to provide food for 10 guests? 12? 21?

1 answer

y=kx
30=k*4
k=7.5
y=7.5 x
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