Sierra is saving for a skateboard. Sierra's aunt gives her $45.00 to start, and she saves $3.00 each week. The expression gives the amount of money she will save after w weeks. How much will Sierra have saved after 4 weeks?

Sierra will save $ after 4 weeks. Remember to include dollars and cents in your response.

1 answer

To find out how much Sierra will have saved after 4 weeks, we can use the expression based on the information given. The expression for the total amount saved after \( w \) weeks is:

\[ \text{Total Savings} = 45 + 3w \]

Where \( 45 \) is the initial amount from her aunt, and \( 3w \) is the amount she saves each week.

Now, let's substitute \( w = 4 \) into the expression:

\[ \text{Total Savings} = 45 + 3(4) \] \[ = 45 + 12 \] \[ = 57 \]

After 4 weeks, Sierra will have saved a total of $57.00.

Thus, Sierra will save $57.00 after 4 weeks.