If r is an integer greater than 1, what is the value of (−1)r +1 if:

1. r is an odd number

2. r is an even number

1. 0

Step-by-step explanation:

I don't know the even number one.  (−1)^r when r is an odd integer greater than 1 always  will equal -1                                     then -1 + 1 = zero

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09

justin bieber ml.