Answer:
The height of the building is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle ABC

we have

substitute and solve for BC


Find the height of the building
The height of the building (h) is equal to

Expression 3,
because 6 and 8 are factors of 48. Since positive 6 & 8 are the two numbers of choice, the product will be positive. My answer is reasonable because if you were to multiply positive 8 and 6 you will get positive 48.
Answer:
I think you need pictures but i'll try to help.
Step-by-step explanation:
What ever line is displayed in the answer that goes up 2 and over 3 on the graph is your answer.
Ex.
If you start with a graph at point 0,0 then go up 2 to point 2 on the y axis then over 3 to point 3 on the x axis. Draw a straight line between the first coordinate which was 0,0 and the second which would be 3,2 that line would have a slope of 2/3. then the next coordinate after 3,2 would also go up 2 and over 3 which would be point 6,4 and that coordinate would also fall on the thee same line as the previous 2 coordinates.
Have you tried multiplying?