(1) Is the following equation linear? If it is linear, give values for a and b that result when the equation is written in the form ax+b=0.

4/x - 4 = 3

Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.A. The equation is linear with a=_______ and b=_______ B. The equation is not linear.

(2) Using the variable x, translate the sentence into an equation. Solve the resulting equation.

If a number is increased by 9 and then divided by 4, the result is 8. The algebraic equation is ________

The number is

(3) A plane is 500 miles west of city A, and is flying west at 600 miles per hour. How long will it take for the plane to be 2690 miles west of city A? It will take_______ hour(s) for the plane to be 2690 miles west of city A.