Question

Pleas help it’s urgent

Answer 1

`x=12 m\\3.5x = 42 m`

Explanation:

perimeter is adding every side so we will do just that and set it equal to 120

x+x+x+3.5x+3.5x=120

`3x+7x=120\\10x=120`

Divide both sides by 10

`x=12`

Now we know x is equal to 12 m now to find 3.5x we multiply 12 by 3.5

3.5x12= 42

hope this helps