Which statement is true? The sum of 78 and 87 is zero.

The sum of 78 and −87 is zero.

The sum of 78 and 78 is zero.

The sum of 78 and −78 is zero.

The sum of 78 and -78 is zero. But also.. If you use a number line, & start at 78 and you subtract -78, you will move 78 to the left. Leaving you at zero.

Step-by-step explanation:

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

unless if u could do my questions, if not i wouldn't want to