Answer:
C
Step-by-step explanation:
(4x+4)
h(x)=5x+6
k(x)=9x-2
(k-h)(x)= (9x-2-5x+6)
9x-5x=4x -2+6=4
(k-h)(x)= (4x+4)
18.66 degrees
To make it easy let's list the integers that are beetwen 15 to 30 inclusive :
15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30
the the whole interval ]15,30[ is the answer