The solid waste generated each year in the cities of the US is increasing. The solid waste generated in millions…

The solid waste generated each year in the cities of the US is increasing. The solid waste generated, in millions of tons, was 


 in 1960 and 


 in 1980. The trend appears linear during this time. Consider that 


 is the difference of years (


 represents 1960)

(a) Construct a formula for the amount of municipal solid waste generated in the US, 


 in millions of tons, in terms of the difference of years, 


 by finding the equation of the line through these two points.

(b) Use the formula from part (a) to predict the amount of municipal solid waste generated in the US, in millions of tons, in the year 2025.

Enter the exact answer.

[removed]millions of tons.

exact number, no tolerance