*5. Tom's brother is 6 years older than Tom. Their combined ages add up to 24. How old is Tom?*
A. 11 years
B. 10 years
C. 9 years
D. 8 years

*15 pts* the graph of an exponential function of the form y = f(x) = ax passes through the points and the graph lies the x-axis. first line choices: (0, a) (0, 1) (0, 2) (0, -1) second line choices: (1, 0) (1, a) (1, 1) (1, -2) third line choices: above below on the