Answer: Yes, a triangle can have sides of those lengths.
Step-by-step explanation:
A. 6 51
B. 6 42
C. 34 minutes
.05 is equal to 5%
So for every dollar the mark up is .05cents
So if you times $81 by .05 this will give you the mark up because each of the 81$ needs .05 added to it.
So $4.05 Is the mark up
And
The cost would be markup and original added together
Answer:

Step-by-step explanation:
see the attached figure with the letter D to better understand the problem
we know that
The segment side AD is the height of triangle ABC
so
Triangles PBQ and ABD are similar by AA Similarity Theorem
The area of triangle ABC is equal to

we have

substitute


Remember that
If two triangles are similar then the ratio of its corresponding sides is proportional
so

substitute the given values



Answer:
The required expression is: 
Option C is correct option.
Step-by-step explanation:
We need to find the equation that fits the description.
a) the expression is the quotient of two quantities
The quotient is expressed as 
where a is numerator and b is denominator
b) The numerator of the expression is product of 5 and the sum of x and y
Sum of x and y = x+y
Product of 5 and Sum of x and y = 5(x+y)
So, Numerator of the expression is 5(x+y)
c) The denominator is the product of negative 8 and x
Product of negative 8 and x = -8x
So, denominator of the expression is -8x
Now, The required expression is: 
Option C is correct option.