Answer:
The answer is C, the third one.
h(3b)=12b+4
another answer
h(3b)=4(3b+1)
Step-by-step explanation:
h(x)=4x+4
h(3b)=4(3b)+4
if need to simplify..then:
Answer choice B.
Remember the 3:4:5 rule.
4,6 hope this helps you