Bacteria X has a growth rate of 160 % per hour. Some amount of bacteria X are accidentally introduced into some twirly macaroni salad. Two hours after contamination, there were 40,000 bacteria X in the twirly macaroni salad.

Find the initial number of bacteria X introduced into the twirly macaroni salad:

bacteria

Estimate the number of bacteria in the food 3 hours after contamination.

bacteria