767, 637 is the answer!
How?-
(initial number bacteria) × 3^(num berof hours)
yes:x+7=18
no:2x+7=36
x+14=36
not enough info:(2×x)+(2×7)=36
2 (x+7)=72
, (49)^1/2 we can write it as square root of 49 , and also the square root of 49 is 7
I havent done this stuff but I'm assuming x has to be equal to the number its being subtracted from so that the end result would be 0.
Solution
2/3
Alternative Form
~3.4641