10 points. only answer 3 and 4 . and also only answer if you know it plea.

3. Walter's sample is not representative. 4. The population is his community service group.

Step-by-step explanation:

3. His sample is not representative because the survey was only on his math class, not the whole entire population. This sample only represents his math class.

4. The population is his community service group that is what class he is surveying 15 members from.

Hope this helped!

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

the answer is 489

step-by-step explanation: