F (x) = 5500 (1.65)

at what percent are the bacteria growing each hour

So exponenetial growth or decay

it goes like this

f (t) = P (1+r) ^t

r=rate of decay or grouth

if r>0 then it is grouth by r

if r<0 then it is decay

i

P=initial amount

so

given

f (x) = 5500 (1.65) ^t

f (x) = 5500 (1+0.65) ^t

0.65>0 so it is growing by 65%