First, place the given value (0) into the equation of f
2(1/3)^0-1 +4
2(1/3)^-1 +4
When the exponent is a negative, that means you flip the fraction (or sometimes, whole number), which in this case becomes 3, so now we have 2(3) +4, which is 6+4, which is 10
Next, place that value (10) into the h equation
10+4/10-2
14/8
Simplifying this, we'd get 7/4