Answer:
For the expression 
k = 9 is the required solution.
Step-by-step explanation:
Here, the given expression is 
Solving the above expression for k, we get:

or, 
or, 
or, k = 9
Hence for the expression 
k = 9 is the required solution.
Answer:
the answer is 3
Step-by-step explanation:
function notation is the way a function is written.
Answer:
Each t-shirt cost 13 dollars.
Step-by-step explanation:
Since the jacket was 20 bucks, we can set that aside:
85-20=65
Now that we've set that aside, there are five t-shirts. If they all cost the same, that means we can divide!
65/5=13
How to check?
Use inverse operations: 13*5=65
Re-add the 20 bucks from the jacket, and the bill is complete again! Use inverse operations: 13*5=65
Each shirt costs $13.
Answer:
y=2x
Step-by-step explanation:
We need to first find the slope. Lets get two points and apply the slope formula.
(1,2) and (2,4)
Rise: 2
Run: 4
Slope: 2
Then, lets use the standard way of showing a linear equation.
y=mx+b
y=2x+0