Please help with question number three. Only first and third. I appreciate your help, I am lost!

I'll do the first part to get you started.

Area = 1/2

Length = 7/8

Width = W

Area of rectangle = Length*Width

A = L*W

1/2 = (7/8)*W

(8/7)*(1/2) = (8/7)*(7/8)*W see note1 below

(8*1)/(7*2) = (8*7)/(7*8)*W see note2

8/14 = (56/56)*W

4/7 = 1*W see note3 and note4

Foot notes

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

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.