The cashier finally understood what you were saying and decided to apply what she learned to her own purchases. She receives an employee discount (d) of $10. She bought a pair of jeans (j) for $15 and three shirts (s), each for $8. The word evaluate means "to find the value of an expression." In the expression, we substitute numbers for the variables and then perform the operation. Try solving first; then click the Answer button to see the steps.
| Step | Answer |
| 1. Write an expression that represents the situation. | j + 3s - d |
| 2. List the given values for each variable in the expression. | j = $15, s = $8 and d = $10 |
| 3. Substitute the numbers in for the variables. | $15 + 3($8) - $10 |
| 4. Simplify using the order of operations. | $15 + 3($8) - $10 $15 + $24 - $10 $29 |
