Question

Which of the following examples have a constants rate of change A) the number of bacteria B) A plumber earns $90 the first hour plus $55 for every additional hourC)the money you put in bank earns 1.6% interest this means that the bank pays you 1.6% of the amount of the money kept in the bank each year D) you are making cookie dough and and you mix one batch in 10 min and then mix another batch in 8 min

Answer 1

i know it's late but the answer is B.

Explanation:

A plumber earns $90 the first hour plus $55 for every additional hour.

Answer 2

The number of bacteria can be modeled with an exponential function.

The interest function is also an exponential function.

The only linear relationships are the money that the plumber earns and the function about the cookie dough, since they increase with constant rates.