Which is an example of the commutative property?

a.
–(11 + 4) = –11 + (–4)

b.
–13 + 13 = 0

c.
9 + (–4 + 7) = (9 + –4) + 7

d.
18 + (–14) = –14 + 18

Leo is going to use a random number generator 4 0 0 400 times. each time he uses it, he will get a 1 , 2 , 3 , 4 , 1,2,3,4, or 5 5. what is the best prediction for the number of times that leo will get an odd number?

What’s -11-33k and factor each expression completely

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b