3 gold chains and 4 hair ties and spent $19.35 and the second day he got 2 gold chains and 3 hair ties and spent $13.28. How much is a gold chain and how much is the hair tie

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

17 in long 1.3 ft wide and 8in high what is the volume

What is the solution set of the quadratic inequality x^2-5< or equal to 0