If n is an integer and n×10 is a negative number, which of the following statements must be true? n < 0
n > 0
n = 0
None of the above.

n < 0

Step-by-step explanation:

n has to be less than 0 because multiplying by a positive number will not change the sign.

Examples:

-2 * 3 = -6

-5 * 4 = -20

4 * 3 = 12

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

or