To determine how many weeks it will take Menendez to save $135, we can solve the equation:
\( 10w + 55 = 135 \)
- First, subtract 55 from both sides:
\[ 10w = 135 - 55 \]
\[ 10w = 80 \]
- Next, divide both sides by 10:
\[ w = \frac{80}{10} \]
\[ w = 8 \]
So, it will take Menendez 8 weeks to save $135.