11. describe and correct the error in evaluating the expression.
–21-7)= -14

step-by-step explanation: yes

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

49%

step-by-step explanation:

when you realize that you dont know just realize i just took a test and im so smart

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2