Consider below info to be a table:
AMOUNT OF BACTERIA
TIME - AMOUNT
1PM - 10gms
4PM - x gms
7PM - 16.9 gms
Data for a certain biology experiment are given in the table above. If the amount of bacteria present increased by the same factor during each of the two 3-hour periods shown, how many grams of bacteria were present at 4PM ?  Pick one:	A) 12.0	B) 12.1	C) 12.2	D) 13.0	E) 12.4
let say the factor is x, the at 7PM quantity = 10 (i.e. quantity @1PM)* x^2 =16.9 =&gt; x^2 =1.69 or x = 1.3 =&gt; @4PM quantity = 10x =10*1.3= 
<gadget id="calculator">10*1.3</gadget>
<output>13</output>
13.   Answer 13.0
<result>D</result>
Consider below info to be a table:
AMOUNT OF BACTERIA
TIME - AMOUNT
1PM - 10gms
4PM - x gms
7PM - 16.9 gms
Data for a certain biology experiment are given in the table above. If the amount of bacteria present increased by the same factor during each of the two 3-hour periods shown, how many grams of bacteria were present at 4PM ?