The table below shows the cost of downloading songs from a website. Number of Songs
Number of Songs
Total Cost
Total Cost
9
9
$
2.88
$2.88
16
16
$
5.12
$5.12
20
20
$
6.40
$6.40
At this rate, what is the cost per song?

here is your mark brainliest

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm