Which number sentence is true? A) |-981> 172
B) 1.1x103 <6.05x102
C) 44>1-491
D 1-3.81> V17

True and false are called truth values. Number sentences that are inequalities also have truth values. For example, 3 < 4, 6 + 8 > 15 > 12, and (15 + 3)2 < 1000 - 32 are all true number sentences, while the sentence 9 > 3(4) is false. Determine what each symbol stands for and provide an example

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.