Respuesta :

Answer:

3)  5

5)  1

Step-by-step explanation:

substitute the value of 9 for each 'x' in the expression

3) h(9) = 2/3(9) - 1

            = 18/3 - 1

            = 6-1 or 5

substitute the value of 5 for each 'x' in the expression

5) f(5) = -5² + 6(5) - 4

         = -25 + 30 - 4

         = 5-4 or 1