3. During a certain period of time, about 70 northern sea otters had an annual growth of 18%. Write an
exponential growth function, then find the number of sea otters after 4 years.

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm

it would be 0.18 because when the other choices are converted they equal those two numbers.   hope this !