NEED HELP ASAP The length of a rectangle is 3 times its width. The width of the rectangle is x. The perimeter of the rectangle is equal to the expression below.

x+3x+x+3x

Which expression also represents the perimeter of the rectangle?
6x
8x
6x2
9x2

i think the correct option is the second option.

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

answer:

125 yards

explanation:

75+50=125. that is my answer