24+8 = 30
30 - 12 = 18
18-9 = 8
There are 8 cards left in the stack
No, it is equal to the decimal -.3333... 1/3^-1 however, would be equal to three since the negative exponent could be brought to the top and made positive, maybe that's what you were thinking of?
K=2g and we are told k-12=6(g-12)
using the value k=2g in the second equation we have:
2g-12=6(g-12)
2g-12=6g-72
4g=60
g=15
Gabriela s now 15 years old.