David works in a department store selling clothing. He makes a guaranteed salary of $250 per week, but is paid a commision on top of his base salary equal to 5% of his total sales for the week. How much would David make in a week in which he made $1500 in sales? How much would David make in a week if he made xx dollars in sales?

A linear function is a function that changes at a constant rate.

The given parameters are:

A linear function is represented as:

Where:

So, we have:

Express 5% as decimal

On a sale of $1500, the equation becomes

Hence. David would make $325 if he made $1500 in sales, and he would make 250 + 0.05x if he made $x in sales

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250 + 0.05 (1500)

250 + 75 = $325 david made i a week with 1500 in sales

250 + 0.05(xx) is how much david would make if he sold xx that week

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i hope this helped :)

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