She can earn $90 each day, after deductions, and she can work a maximum of 40 days in July and

August, combined. She expects each day of travel will cost her $150 and the laptop she hopes to

buy costs $700.

a) Write a linear equation that represents the number of days Emma can work and travel and

still earn enough for her laptop.

b) Sketch the graph of this relation.

c) State the domain and range of this relation.

d) If Emma plans to travel for 6 days, how many days does she need to work?

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