Answer:
g(x) = 3x best describes Jane's savings in the long run and
f(x) = 3x+3 Mariah's savings in the long run
Step-by-step explanation:
Jane's savings
x ( years ) g(x) = 3x
1 , 3 ...... g(1) = 3 *1 = 3
2 , 6 ........... g(2) = 3 *2 = 6 -> Values missing in the table
3 , 9 ................. g(3) = 3 * 3 = 9
Mariah's savings
x ( years ) f(x) = 3x + 3
1 , 6 ............. f(1) = 3(1) + 3 = 6
2 , 9 ................ f(2) = 3(2) + 3 = 9
3 , 12 .............. f(3) = 3(3) + 3 = 12