A 12 ounce Pepsi costs $1.44. A 16 ounce Pepsi costs $2.24. Which is the better buy? The answer choices are:
A. 12 ounce; $0.15 per ounce.
B. 16 ounce; $0.14 per ounce.
C. 12 ounce; $0.12 per ounce.
D. 16 ounce; $0.09 per ounce.

range =5

step-by-step explanation:

to find the range, we take the largest value and subtract the smallest value.

the largest value is 5

the smallest value is 0

the range is 5-0   =5

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.