Gene lives 0.6 miles from school. Kate lives 0.51 miles from school. Gene is walking to school to get a book he forgot. Then he is walking to kates house will he walk more than a mile or less than a mile? Explain.

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.

1) letter c.

2) 4 square root of 9

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step-by-step explanation: