Y = –3x + 6 y = 9 what is the solution to the system of equations? (–21, 9) (9, –21) (–1, 9) (9, –1).

Did the universe cool off or get hotter as it expanded after the 'big bang"?

Whats begin with t, ends with t has t in it

What would most likely occur over time if new technologies gave us information that challenged what scientists currently understand about natural selection? a new scientific law would be established and proven by the findings. a new scientific theory would be established and proven by the findings. a current scientific law would be revised based on the new findings. a current scientific theory would be revised based on the new findings.