Answer:
There are 5
Step-by-step explanation 5!= 5*4*3*2*1 = 120 different ways
7=x this is for the first one but you have to 1
3
=
2
1
1
3
=
x
21
31=21x
2
1
⋅
1
3
=
2
1
⋅
2
1
21
⋅
1
3
=
21
⋅
x
21
21⋅31=21⋅21x
Multiply the numbers
Cancel multiplied terms that are in the denominator
7
=
2
1
⋅
2
1
7
=
21
⋅
x
21
7=21⋅21x
7
=
7
=
x
7=x
7
=
7
=
x
7=x
Answer:
B. Survey 1,000 people aged below 25 who read newspapers
Step-by-step explanation:
It's the youth in the community so it's obviously people below 25 and we need more responses to get a more unbiased opinion.
It increases then decreases then becomes constant