How to is the tree that cast a shadow of 320 centimeter long and john who is majoring the tree is 180 centimeter tall and cast a shadow of 180 centimeter long?

Solve the system. -a+4b+2c=-8 3a+b-4c=9 b=-1 a.(0,11) ,-1,2) c.(1,1,-2) d.(2,-1,-1)

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why