Statistics question please answer all parts and do not bother guessing

Which math sentence can be used to determine if the triangle is a right triangle?

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !