The tree in your friend's yard casts a shadow that is 27 feet long. your friend is 5 feet tall and casts a shadow that is 4.5 feet long. what is the height of the tree?

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

What is the anwers for 9+2x=5x-3-x

Is the figure congruent? yes or no?