Is (1,9) a solution to this system of
equations?
y = x + 6
y = 2x + 7?

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

Suppose that g(x)=f(x+9) which statement best compares the graph of g(x) with the graph of f(x)