Really need , don't understand

stephanie has been putting money in her savings account for the last year. the graph shows data about stephanie's savings account over time. (coordinate graph)

which is a reasonable inference for the amount of money stephanie had in her savings account at month 13?

a.
$600

b.
$650

c.
$750

d.
$800

Select all the correct answers.natalie buys a new car. in the first month, the odometer on the car records 800 miles. from past experience, she expects to drive 900 miles per monthselect all the functions that can be used to find the number of miles, f(n), recorded on the odometer after n months.of(n) = 800n + 100f(n) = 9001 - 100f(n) = 900n + 800(1) = 800; }(n) = f(n - 1) + 900, for n > 2f(1) = 800; 1(n) = f(n − 1) + 100, for n > 2(1) = 900; }(n) = f(n - 1) + 800, for n > 2

What is the value of x in the following equation? -3x-2=2x+8

Which of the choices shown could be used to prove that aacp=abcp ?