Answer:
what exactly is the question?
Step-by-step explanation:
A weight lifter can bench press 189 kg. How many milligrams (mg) is this?
Answer: We know that:

We are given, that a weight lifter can bench press 189 kg
Therefore, a weight lifter can bench press:



Therefore,
is equal to the 
Answer:
Step-by-step explanation:
|4r−12| = -(4r-12) when 4r-12< 0
4r< 12 so r<3
Answer:
False
Step-by-step explanation:
A number that can expressed as
,
Where, p and q are integers such that q ≠ 0, is called a rational number.
Also, a decimal number with repeating pattern is a rational number,
( for eg : 0.333.... =
)
Since,
√3 = 1.73205080757.....
∴ There is no repeating pattern
Thus, √3 is not a rational number.
Given statement is FALSE.
Google them? google will have all of them