If -11 + N=-11 then N is the A. multiplicative inverse
B. additive inverse
C. additive identity
D. multiplicative identity

Ten times the square of a non-zero number is eqaul to ninety times the number

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

There are 10 chicks on ginger's farm .she has 2 chicks in one outdoor pen and 5 chicks in another. the rest of the chicks are in the barn.what is the fraction of total chicks in outdoor pens?