Please solve all the parts if correct ans will give brainliest

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

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 !

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?