HELP AND SHOW ANSWER :/ Which graph represents the solution set to the system of inequalities?

{ y<−1/2x+2
y≥−3/2x+2

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

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