# Savannah is a salesperson who sells computers at an electronics store. She makes a base pay of \$90 e

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Savannah is a salesperson who sells computers at an electronics store. She makes a base pay of \$90 each day and is also paid a commission for each sale she makes. One day, Savannah sold 4 computers and was paid a total of \$100. Write an equation for the function P(x), representing Savannah's total pay on a day on which she sells x computers.

If base pay is \$90 per day, then the total commission Savannah made for selling 4 computers is:
Commission = Total Pay - Base Pay
Commission = 100 - 90
Commission = \$10

Assuming the commission for each computer is equal, we need to find the commission per computer:
Commission per computer = Total Commission / Number of Computers Sold
Commission per computer = 10/4
Commission per computer = \$2.50

Now, we build the Total pay function P(x):
Total Pay = Base Pay + Commission * Number of Computers sold
P(x) = 90 + 2.5x