please for the love of God help!!!!!! and I need you to hurry

Disposable income is the amount left after taxes have been paid and is one measure of health of the economy. The table gives the total disposable income for a country, in billions of dollars, for selected years from 2010 and projected to 2040 Complete parts (a) through (c) below. a. Can these data be fitted exactly by a linear model? A. No. The data do not include every year between 2010 and 2040 . B. Yes. The first differences are constant for uniform inputs. C. No. The first differences are not constant for uniform inputs. D. Yes. Each first difference is double the previous first difference for uniform inputs. b. Find a linear model that models the data, where x is the number of years after 2000 and y is the total disposable income in billions of dollars. y= (Type integers or decimals rounded to three decimal places as needed.) c. What does the model predict the total disposable income will be in 2028? billion (Round to three decimal places as nieeded.)