I know the answer, because of calculators, but I can't quite figure out how to do it without one and I just want an explanation on how the answer was made. Please help :)

There are 40 volunteers for the research study on the Power Pill. Each subgroup of the study will contain 10 participants. Determine how many ways these participants can be selected and explain your method.

The answer correct answer is 847660528.

the answer to this question is yes

horizontal translation of 2 units in the positive x direction

followed by

vertical translation of 3 units in the positive y direction

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