What is -1.2x-6.5x less than or equal to 2.3x + 5

First we should put this into an inequality form: 
-1.2x - 6.5x ≤ 2.3x + 5 
Next combine like terms: 
-7.7x ≤ 2.3x + 5
Then subtract 2.3x from both sides: 
-10x ≤ 5
Lastly, divide each side by -10: 
x ≥ -0.5

The solution is x ≥ -0.5, hope this helps!

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.