Use linear regression to find the equation of the line that best fits the data. predict the average retail price of a game system that is 7 years old in the spring of 1997. at what age is the game system worthless?

2? if not the correct answer you might need to provide more information

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

can i know which language is this?

i think da answer is

d.square root of 3