Question

carla and her sisters each earned 9 dollars for babysitting. which expression represents how much carla and her sisters earned in total? 2(9 + x) 9 + x 9x 2x + 9

Explanation:

Step1: Define the variable

Let \( x \) be the number of Carla and her sisters (including Carla). Each person earned 9 dollars.

Step2: Determine the total earnings

To find the total earnings, we multiply the amount each person earned (9 dollars) by the number of people (\( x \)). So the total earnings is \( 9\times x = 9x \).

Answer:

\( 9x \) (corresponding to the third option)