The amount of sales (S) of statin in billions of dollars by 2017 is 34.5 billions
<h3>Linear equations</h3>
Linear equation are equation that has a leading degree of 1. Given the equation that represents Statins used to keep cholesterol in check and are a top-selling drug in the U.S.
S-1.5x = 6
where
S is the amount of sales
x is the number of years after 1998
By 2017, the total number of years is 19 years
Substitute
S = 1.5x + 6
S = 1.5(19) + 6
S = 28.5 + 6
S = 34.5
The amount of sales (S) of statin in billions of dollars by 2017 is 34.5 billions
