12. A ladder is 50 feet and cast a 25 foot shadow. Mark is 6 feet how long would his
shadow be?

His shadow would be 3 feet long.

Step-by-step explanation:

Ladder:

Mark:

Using proportions and ratios formula.

Cross multiply.

6 = 2x

Divide both sides.

3 = x or x = 3

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

a natural event such as a flood, earthquake, or hurricane that causes great damage or loss of life.

step-by-step explanation: