Answer:
70
Step-by-step explanation:
Find the average of those numbers, add all the divide by 5
Given:
Cost of 1 digital song = $1.05
Cost of 2 digital song = $2.10
Cost of 5 digital song = $5.25
To find:
The equation and the cost of 25 downloaded digital songs.
Solution:
Let us take two points (1, 1.05) and (2, 2.10).
Here 
Slope:


m = 1.05
Using point-slope formula:



Add 1.05 on both sides, we get

Here x is the independent variable and c is the dependent variable.
So that substitute x = n and y = c.

The equation is c = 1.05 n.
Substitute n = 25 in the equation.


The cost of 25 songs is $26.25.
Answer: 60 degrees
Step-by-step explanation:
It’s a straight line, which means it’s 180 degrees
The angle of one side is given; which is 120 degrees
Now, we just need to subtract it from 180 to get the other angle
180-120 = 60 degrees