Acoin is tossed 3 times. what is the probability of obtaning two heads out of the 3 tosses

The circumference of a circle is 5 pi cm. what is the area of the circle?

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 does x = in this equation x+3+2x=x+5