Ocean sunfishes are well-known for rapidly gaining a lot of weight on a diet based on jellyfish. The relationship between the elapsed time, ttt, in days, since an ocean sunfish is born, and its mass, M(t)M(t)M, left parenthesis, t, right parenthesis, in milligrams is modeled by the following function:
M(t)=4⋅(8149)t
Complete the following sentence about the rate of change in the mass of the sunfish. Round your answer to two decimal places.
The sunfish gains \dfrac{2}{7}
7
2

start fraction, 2, divided by, 7, end fraction of its mass every