Answer:
Proportional
Step-by-step explanation:
place x = 19
f(19) = 3 / 19 + 2 - Sqrt 21 - 3
= 3/21 - 4
= - 81/21
= - 27/7
5.5 inches
Answer: 87, 88, 89, 91, 92, 93, 94, 95, 96, 97, 98
You basically try a whole bunch of numbers by taking those two numbers and another then adding them and dividing them by 3.
I'm pretty sure the answer is C