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 
80.0 in 1960 and 
140.0 in 1980. The trend appears linear during this time. Consider that 
t is the difference of years (
t equals 0 represents 1960)
 

 
(a) Construct a formula for the amount of municipal solid waste generated in the US, 
Upper W comma in millions of tons, in terms of the difference of years, 
t comma by finding the equation of the line through these two points.

Upper W equals 

 

 

(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.

Upper W left-parenthesis 2025 right-parenthesis equals[removed]millions of tons.

 

exact number, no tolerance

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