An infinite geometric series has first term $328$ and a sum of $2009$. what is its common ratio?

What is the first step of an indirect proof of a number that is divisible by two

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?