What is the answer Which equations support the fact that rational numbers are closed under addition?

Select each correct answer.

35‾√+5‾√=45‾√

12+0.5=1

316‾‾‾√+316‾‾‾√=616‾‾‾√

10‾‾‾√+(−10‾‾‾√)=0

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

3 ft is your answer

it should be described as a proper fraction.