Which shows how to find the value of this expression when x=-2 and Y = 5? (3x®y-2,2
O
32(-2)
54
3(-2)
O
54
32(5)6
(-24
3
O
(2) 54

but which class are u may know that first

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.

29 is x=.7

30 is y=3.375 or 3 and 3/8