Need with number 40 plz. i was a little confused when i tried.

You can rewrite the decimal as a fraction  and compare the two fractions.  The fractions need to have a common denominator.

You can change the fraction to a decimal and compare.  take the numerator and divide it by the denominator.  

Unless I recognize the decimal as a fraction right away, I find it much easier to write the fraction as a decimal and compare

The required expression is −13(100b+1)

Step-by-step explanation:

Consider the provided expression.

13b−1313b−13

We need to Factor out the coefficient of the variable.

First subtract the like terms.

−1300b−13

Now take 13 common as shown below:

−13(100b+1)

Hence, the required expression is −13(100b+1)