Which of the following shows 3 + (x + 6y) rewritten using the associative property of addition?
a 3 + x + 6y
b 3x + (6 + y)
c x + (3 + 6y)
d (3 + x) + 6y

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.