If y varies directly as x, and y is 12 when x is 1. 2, what is the constant of variation for this relation?.

24 or 10

Step-by-step explanation:

unluckily, when you copied the text you did not paste well the value of x, but I assume it is 1.2 or 1/2

for the first value, the K (costant of variation) is 24, while for the second is 10, as the photo explains

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.