What is the common difference, d, of the sequence? -92, -74, -56, -38, -20

 18

Step-by-step explanation:

common difference is obtained by  taking difference of two consecutive

terms

-74-(-92)

-74+92

=18

the answer is 31.27mph

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