Brainliest for correct answer please help

A. x = 12

Step-by-step explanation:

Interior angle + interior angle = exterior angle

9x + 7 + 3x + 4 = 155

12x + 11 = 155

      -11       -11

12x = 144

12       12

x = 12

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

i hope this is what you were looking for.

see attached graph