Use the following information to answer questions 28–30.

Petsnacks produces and markets food treats and toys for pets. It currently produces 3 different flavored treats for cats and 4 different flavored treats for dogs. One of its cat toys is a spherical catnip ball with an outside diameter of 4 inches. Catnip is an herb that causes a reaction in 80% of all domestic cats. Petsnacks makes a profit of $7.50 on each catnip ball it sells.

29. Petsnacks sold 1,500 catnip balls in its 7th month of operation and 1,550 catnip balls in its 8th month. Given that its sales of these toys have followed an arithmetic sequence since the operation began, how much profit, in dollars, did Petsnacks make on the catnip balls in its 3rd month of operation?

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

catnip is an arithmetic sequence, so the tolerance is 1550-1500=50; set the seventh item as a7, the first item as a1, a7=a1+(7-1)*50, so a1=1200; a3=1200* (3-1)*50=1300, 1300*7.5=9750