Answer:
Its option number 2 perhaps, sorry if im wrong
Step-by-step explanation:
Check the picture below. So,the parabola looks like so, notice the distance "p". since the parabola is opening to the right, then "p" is positive, thus is 5.

Answer:
C. (1,18)
Explanation
If you don’t know how to find it, just plug in the values into the equation until they are equal to each other
75√109.5=1.46
1.2√79.1=65.92
5.2√9.16=1.76
17.1 =17.1
If the bacteria is tripling every 10 minutes, that means the "rate of increase" on that period is 200%, so if say the current amount is "c", 200% of "c" is just 2c, so c + 2c is 3c, a tripled amount.