Geometric with a common ratio of 4/3
9*4/3 = 12
12*4/3= 16
16 *4/3 =21 1/3
Each friend would get 1/6 if the total amount of money they made that day.
<em>P.S. I'm sorry that I'm answering this late...</em>

put all numbers on the left

third equation is the answer

multiply by 3
3x-y=0
Answer:
The focus of a parabola is (2, 5) and the directrix is y = 3. Find the equation of the parabola in standard form.
Step-by-step explanation:
ANSWER IS A I THINK.. hOPE I HELPED! :)