How would you simplify this problem: x + 9 -2x + 5 ?

​A pack of 12 sodas costs $5.04. What is the unit rate in dollars per soda?

How do you graph 3y - 2x = 9?

​The sum of 12 and 11 times and a number is -318. What is the number?

​Shirley is saving money to buy a new computer. The computer she will buy costs $1,200.
She has already saved 300.  Shirley will save another $60 each week, until she has saved enough money to buy the compute.  How many weeks will it take Shirley to save enough money to buy the computer?

Find the equation of the linear function represented by the table below in slope-intercept form.
(x, y)
(-4,-12)
(1,-2)
(6, 8)
(11, 18)