Answer: C. 8
At 10:15 a.m., there are 8 cells in the bottle.
Step-by-step explanation:
6/5 because flip the second number and multiply when dividing fractions.
Presume y=kx +b,then substitute (3,0)&(5,4),
When x=3,y=0,so 3k+b=0;
When x=5,y=4,so 5k+b=4;
Now u can know that k=2,b=-6.
The answer is:y=2x-6.
1,4
—— —> 1 divided by -3 or 4 divided by -2
-3,-2