The expression below represents the number of bacteria in a petri dish after t hours. interpret the meaning of the expression. a. the initial number of bacteria is 57, and the growth rate is 3.1% per hour. b. the initial number of bacteria is 57, and the growth rate is 31% per hour. c. the initial number of bacteria is 131, and the growth rate is 5.7% per hour. d. the initial number of bacteria is 131, and the growth rate is 57% per hour.

Solving this problem requires the supplement of the actual expression. However I believe you forgot to include it with the question.

However I believe that the expression is in the form of:

y = A e^(-k t)

where,

y is the number of bacteria after time t

A is a constant and represents the initial number of bacteria

k is the growth rate in decimal form

t is time

So whatever is located in A is the initial number of bacteria, while k times 100% is the growth rate.

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