You need to solve this with the substitution method?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3

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