E(m) = 12(0.75)^m

WHAT DOES E (m) 20 MEAN INTHE CONTEXT OF THIS PROBLEM?
WHAT DOES E (45) MEAN IN THE PROBLEM?
DOES FINDING E (-10) MAKE SENSE IN THIS PROBLEM?

In the context of this problem, E(20) means to evaluate E(m) when m is equal to 20.

E(45) means to evaluate E(m) when m is equal to 45.

Finding E(-10) may not make sense in this problem because the function represents exponential growth with a base of 0.75 raised to the power of m. When m is negative, the base raised to a negative exponent would result in a fraction which may not be suitable for the given exponential growth model.