Respuesta :
38 = 8r+2g
71 =8r+5g
subtract the 2 equations
71 =8r+5g
38 = 8r+2g
------------------------
33 =3g
divide by 3
g=11
38 = 8r +2g
38 = 8r+2(11)
38 = 8r+22
subtract 22 from each side
16 = 8r
divide by 8
r=2
Germaniums cost 11
Rose bush cost 2