$4 for 20 donut holes; $7 for 40 donut holes

Step-by-step explanation:

The question is

Find out the linear equation between the cost in dollar and the number of donuts holes

Let

x -----> the number of donuts holes

y ----> the cost in dollars

we have the ordered pairs

(20,4) and (40,7)

Find the slope m

The formula to calculate the slope between two points is equal to

substitute the values

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

substitute

Find the equation of the line in slope intercept form

Isolate the variable y

18

step-by-step explanation:

ik this stuph and i am smart donkey

pls ask