The school bookstore claims they sell 8 t-shirts for every 3 sweatshirts sold if there are 143 students buying one or the other how many are buying sweatshirts ?

Can someone tell me if this is perpendicular? !

Which question is not a good survey question? a.don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d.are you happy with the availability of electronic products in your state?

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb