here’s my answer, but if anyone can give me another valid answer the offer still holds.
Answer this question and get a $10 cash voucher from ah chye pet treats. Submit your email in the subscription and answers to the email. Do not give out the answers in the comments. No strings attached. No lucky draw. Sure win. Only participate if you have a dog. Don’t deprive a dog of this privilege. Do not submit multiple answers. Do not participate if you got a prize and do not wish to purchase.
I make dog themed math questions to promote math and science among students. That‘s because I really love what I’m doing.