To find the cost of the fence around Mr. Rodriguez's vegetable garden, we can evaluate the expression \( 7(l + 2w) \), where \( l \) is the length and \( w \) is the width.
Given:
- Length (\( l \)) = 5 yards
- Width (\( w \)) = 2 yards
First, we substitute the values of \( l \) and \( w \) into the expression:
\[ l + 2w = 5 + 2(2) = 5 + 4 = 9 \]
Next, we multiply this result by 7 to find the total cost:
\[ 7(l + 2w) = 7(9) = 63 \]
Thus, the cost for the fencing materials is $63.
The correct response is:
$63