Answer:
D:3
Step-by-step explanation:
Step-by-step explanation:
13x+7y-2x+6a
combine like terms
=13x-2x+7y+6a
=11x+7y+6a
simplified
10(0.5x + 6) = 8
5x + 60 = 8
5x = 8 - 60
5x = -52
x = -52/5
x = -10.4
That easiliy false. You can prove this by observing that all integers are, in particular, rational numbers. So, for instance, you can think of 4 as
, so 
And obviously, you have 
It is true that the square of every rational number between 0 and 1 is smaller than the number itself.
But since not all rational numbers are between 0 and 1, the general claim is false.