Answer:
From 2004 onwards, fewer than 38.1% of U.S. voters use punch cards or lever machines
Step-by-step explanation:
The percentage of U.S. voters who use punch cards or lever machines in national elections, in x years after 1994, is given by the following equation:
In which years will fewer than 38.1% of U.S. voters use punch cards or lever machines?
In x years after 1994 onwards.
x is found when P(x) = 38.1.
So
From 2004 onwards, fewer than 38.1% of U.S. voters use punch cards or lever machines