Use division to determine whether the following numbers are factors.
answer yes or no.
a. is 13 a factor of 39?
b. is 15 a factor of 342?
c. is 14 a factor of 201?
d. is 12 a factor of 228?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me