Answer:
To find the year when 164 billion dollars was spent on advertising, we need to solve the equation y = 164 for x, where y is the amount of money spent on advertising and x is the number of years since 1990.
Substituting y = 164 into the given equation, we have:
164 = 0.937 + 2.2x + 130
Simplifying the equation, we get:
2.2x = 164 - 0.937 - 130
2.2x = 33.063
x = 15.03
So, 164 billion dollars was spent on advertising 15.03 years after 1990. To find the year, we add 15.03 to 1990:
1990 + 15.03 = 2005.03
Since we are looking for a year within the range of 1990-2000, we round down to the nearest whole number:
2005.03 rounded down to the nearest whole number is 2005.
Therefore, 164 billion dollars was spent on advertising in the year 2005, which is outside the given range. Therefore, the answer is none of the options provided.