I want help ,i want an answer

The ruler measures length as 0.9 cm and 1.2cm

Now, perimeter of this parallelogram is 2X sum of its adjacent side

i.e, 2(0.9cm+1.2cm)= 2×2.1cm =4.2cm

✌️:)

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

c: lkllmn.

hope it's you