Which of the following relationships between two variables could be described using correlation, rr?

This is science by the way which of the following is an example of an environmental pressure a. the air pressure in the atmosphere b. a lake that is gradually running out of water c. a fight between two members of the same species d. breeding between two members of the same species

Find the perimeter of a triangle with sides 6.1 m, 8.079 m, 8.66 m. round your answer appropriately.

Find the area of the triangle with a = 35 b = 11 and c = 10 feet round to the nearest tenth