First, find the area for the kitchen floor: 16.5*15=247.5 squared feet
Then find the area for one tile: 0.5*0.5=0.25 squared feet
Finally, divide the mayor area between the minor: 247.5/0.25= 990 tiles.
Also you can do it in this another way:
First, divide length of the kitchen floor between the length of one tile: 16.5/0.5=33
Then, do the same for the height: 15/0.5=30
Finally multyply both results: 33*30= 990 tiles.
Answer:
Option C is the correct choice that is 
Step-by-step explanation:
As this is a multiple choice question we will reduce the options and work on it with the given points 
Note:We know that
where there is
sign associated with it have a straight line graph there is no breaking in the line.
And when there is simply
we have a dashed line when we plot it on a graph.
So option B and D are discarded.
Now one-by one we will put the values
to know which equation it satisfies.
If we put
then
.
So working with option A.

Plugging the values.

And we know that
must be equal to
so this is not the right answer.
We are left with only one choice that is C .
So option C is the correct option of the above inequality.
Answer:
True, for Probability of a chance event certain to happen is 1.
Step-by-step explanation:
Given that,
A chance of event with probability of happening certainly is 1.
To find:- Is it true or false?
from the given scenario,
Probability states that P(Event) is a number describing the chance of that event will happen And value of
lies between
..

When An Event is certain to occur then its
.
when An Event cannot possible to occur then its
.
And
Is there any chance that event will occur then its value lies
.
Let us take an Example:-
- If it is Saturday, then the probability that tomorrow is Sunday is certain, therefore the probability is 1.
- The probability that tomorrow is Friday if today is Sunday is 0.
Hence,
True, for Probability of a chance event certain to happen is 1.