A is 100%more than b. Which of these shows the ration a:b?

Plz answer asap plz which is a solution to the equation 4b2 − 11b = 28 + 5b2? a) −5 b) −4 c) −3 d) 4

What is the sum of these mixed numbers 2 1/8 + 4 3/8

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum