To solve this problem you must apply the proccedure shown below:
1- The formula for calculate the area of this rectangle is:

Where
is the length and
is the heigth.
2. Let's call identify the heigth with the variable
.
3. If the length is
longer than the heigth, you have:

4. Therefore, you can write the following polynomial expression:

5. If you know the value of the heigth, you can susbstitute it into the polynomial expression shown above and you will obtain the area.
Therefore, the answer is: 
Answer:
c
Step-by-step explanation:
Wouldn't the answer be 200 if they are going by 2's?
Answer:
Y greater than or equal to 6
Step-by-step explanation:
I can't do the sign so I just said it
Combine like terms
Answer:
Its incorrect
Step-by-step explanation:
Area is width times height but in this case its 3 numbers so after you did width time height if I'm not mistaken you multiply that number by 4 so you were supposed to multiply 5 and 6 the answer is 30 and then multiply 30 by 4 which is 120 I think.