If a+1/b−1=5/1 and a−1/b+1=1/1, find the value of b/a

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

The interior angles formed by the sides of a hexagon have measures that sum to 720°. what is the measure of angle a? enter your answer in the box. m∠a= °

Which number completes the system of linear inequalities represented by the graph? y > 2x – 2 and x + 4y >