Answer:
h(4)=17
Step-by-step explanation:
h(g(x)), h(x)= 2x+9; g(x)=4
2(4)+9= 8+9=17
9 because every ten plants is equal to 3 gallons. 30 plants are equal to 9 gallons.
tell me if if helps.
We have the expression:

And want to evaluate in y=5, this means we have to replace y in the expression for 5 and calculate the value of the expression, so:

The expression is 30 when y=5.
The hypothesis is if you win the championship the conclusion is you will get the trophy