U.S. Census Bureau data shows that the number of families in the United States (in millions) in year x is given by h(x)=51.42+(15.473)*log x, where x = 0 is 1980.

b) When will there be 80 million families? I know the answer and how many years time but I need to show work. This is what I have so far 80=51.42+(15.473)*log x

2. The age in years of a female blue whale is approximated by t=-2.57ln(87-L/63)

a) How old is a female whale that measures 80 feet?

b)What is the length of a female blue whale that is 4 years old?

I know the formula for these in the terms of P(t)=Po^ekt