To determine how many pastries the French club needs to sell to meet their goal of raising at least $135, we can set up an inequality.
Let \( x \) be the number of pastries sold. The price for each pastry is $2.50. Therefore, the total amount raised from selling \( x \) pastries can be expressed as:
\[ 2.50x \]
We want this amount to be at least $135, which gives us the inequality:
\[ 2.50x \geq 135 \]
To solve for \( x \), we can divide both sides by 2.50:
\[ x \geq \frac{135}{2.50} \]
Calculating the right side:
\[ \frac{135}{2.50} = 54 \]
So, we have:
\[ x \geq 54 \]
This means the club must sell at least 54 pastries to meet their goal of raising at least $135.