Please solve these questions
I need big help

Ahands-free device may only be used if it can be activated or deactivated with a

+++30 points me in a society that favors economic equity over economic freedom, who would benefit? explain

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.