Can some one help me i have no idea what this is

b=-25

Step-by-step explanation:

10= -2/5b

10=      -2/5b

-2/5       -2/5b

b=-25

Check:

-2/5(-25)=10

10=10

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