What would the total bill be of a lunch that costs 12.99 with a tax rate of 6%?

Step-by-step explanation:

multiply 12.99 by 6% then add that to 12.99

The total bill would be about $13.77

Step-by-step explanation:

6/100 = .006

.006 x 12.99 = .7794

.7794 + 12.99 = 13.7694

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3