A science experiment involves periodically measuring the number of mold cells present on a piece of bread. At the start of the experiment, there are 50 mold cells. Each time a periodic observation is made, the number of mold cells increases by 90%. What will be the mold cell count on the 20th observation?

it should be a and d. lmk if i'm wrong xd

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.

d is ur answer hopes this i dont really know how to explain it to u.