Answer:
156
Step-by-step explanation:
Answer: The first graph.
This can be found by looking at the y-intercept and plugging in values for x.
Let n be a number of friends at the perty. If <span>dinner costs $30 per person, then it cost $30n for all friends.
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Robert has booked a banquet hall which costs <span>$200, then his total expenses are $200+30n.
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If the final bill is p, then p=<span>200+30n.
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Answer: p=<span>200+30n.</span>