Answer:
$6
Explanation:
To make the fruit punch, Alex needs to buy cranberry juice and lemon-lime soda. The recipe calls for 3.5 times as many bottles of lemon-lime soda as cranberry juice. If cranberry juice costs $2.80 per bottle and Alex has a budget of $16.80, he can buy a maximum of 6 bottles of cranberry juice. To find this, we first need to calculate how much Alex can spend on each type of beverage, which is $8.40. If Alex buys only lemon-lime soda, he could buy 3.5 x 6 = 21 bottles at $0.40 each. This equals $8.40, leaving no more money for cranberry juice. Therefore, he can only buy 6 bottles of cranberry juice.