If the are equal then they can be similar, otherwise they are not.
Answer:
11)<em>(-1)</em>
<em>12)1.7</em>
Step-by-step explanation:
11)y+z/x
(-3)+(-2)/5
(-5)/5
<em> (-1)</em>
12)x-5z/y
5+5(-2)/(-3)
5+(-10)/(-3)
(-5)/(-3)
1.666
<em> 1.7</em>
<em></em>
<em>Hope this helps you</em>
<em>If you have any question just ask me</em>
The correct answer is:
D) Jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.
Answer:

Step-by-step explanation:
Multiply across.

Then Simplify.

Answer:
Federcio's age possible values are those that are greater than 14 i.e 15, 16, 17 and so on
Step-by-step explanation:
Let Federico's age = x
Three times the difference of Federico’s age, and 4 means:
3(x - 4)
Increased by 7:
3(x - 4) + 7
Is greater than 37:
3(x - 4) + 7 > 37
Solving the inequality:
3x - 12 + 7 > 37
3x - 5 > 37
3x > 37 + 5
3x > 42
x >42/3
x > 14
Federcio's age possible values are those that are greater than 14