Anyone know the equation for this one?

c = 20r is the equation

Step-by-step explanation:

From the figure given in the question,

cost of 1 dozen of rose = 10 which is 1*20

cost of 2 dozens of rose = 40 which is 2*20

cost of 3 dozens of rose = 60 which is 3*20

cost of 4 dozens of rose = 80 which is 4*20

cost of 5 dozens of rose = 100 which is 5*20

similarly, we can say

cost of r dozens of rose = r*20 = 20r

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

what?

step-by-step explanation: