Respuesta :

j = g + 10
j + g = 27

g + 10 + g = 27
2q + 10 = 27
2q = 27 - 10
2q = 17
g = 17/2
g = 8.50 <=== Gail has $ 8.50

j = g + 10
j = 8.50 + 10
j = 18.50....Jim has $ 18.50