Each of these questions is substantially the same as the others. The answer is, "it depends" on what you want a random sample of. If you want random people in the country, you will not get that from these protocols.
If you want random people that meet certain criteria (have phones, shop in eyeglasses stores, use specific venues), then these protocols will deliver.
You cant use the division of rational numbers to describe data
Answer:
d=1/2
b=1/25
b(row 2)=1/5
e=7/100
explanation: think about them as numbers out of 100 then simplify :)
Answer:
c
Step-by-step explanation:
Photo 1
3x+8=26
3x=18
x=6
Photo 2
x-4=15/5
x-4=3
x=7
Photo 3
27-x=6(x+2)
27-x=6x+12
27=7x+12
7x=15
x=15/7
Photo 4
2(x-12)
2x-24
x=12
Photo 5
3x=3x-18
x=0???
(I was a bit confused on the last one and the third one but at least i tried :)