Answer:
8/3 or 2 2/3
Step-by-step explanation:
Answer:

<h3><u>f(</u><u>3</u><u>) =15</u> is the right answer.</h3>
The whole number could be 1 and 1/5 or 1.2
X is 90 degrees. If AB is the diameter, then it passes through the centre. X is 90 degrees because the angle in a semicircle is always a right angle.