Answer:
A.4
Step-by-step explanation:
14-8=6
6+5=11
11-2=9
9+6=15
15-11=4
Answer:
b. 
Step-by-step explanation:
Here we are given 
and are asked to simplify it. We are going to apply the law of exponents which says that
Hence applying this rule in our problem we get, where a=y and n=3
Hence our C) Option is correct
Answer:
7
Step-by-step explanation:
if the number is x then you know 2x-9=5
2x=14
x=7
so the number is 7
Answer:
A. Perpendicular
Step-by-step explanation:
When lines and/or points are in perpendicular to one another, the perpendicularity line between them measures the distance between both points and/or lines.
So to measure the distance between point c and line AB, a perpendicular line has to be drawn from c to AB or from AB to c. Either of these will arrive at the same result.
It should also be noted that the angle at the point of intersection of perpendicular lines is 90°.
3
is the simplify expression
Step-by-step explanation:
