Answer:
5x/7 - 3/7
Step-by-step explanation:
A) The situation represents an arithmetic sequence because the successive y-values have a common difference of 210.
F(1) = 240 +210
F(2) = 240 +2(210)
F(3) = 240+3(210)
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F(x)= 240 +210x.
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Y =

This is because the total cost is 10x + 480 and then that needs to be divided by the amount of people.
Answer:
Obtuse scalene
Step-by-step explanation: