PLEASE HELP answer options:
SF = 1/3
SF = -1/3
SF = 3
SF = -3

sf=3

Step-by-step explanation:

the green shape is 3 times the size of the red shape

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!