R+S is odd==>R+S=2n+1 (1)
T-S is odd ==>T-S=2k+1 (2)
(1)+(2)==>R+T+S-S=2n+1+2k+1
==>R+T=2(n+k+1) is even
Answer A
1st answer : 1116 - (6x19) /6
If the family buys 6 tickets and the travel insurance is $19 per ticket:
6 x $19 = $114
Take away the total cost from the insurance
$1,116 - $114 =$1,002
6 tickets cost $1,002
Divide $1,002 by 6
$1,002 / 6 = $167
2nd ANSWER::: each ticket costs $167
The zero represents the origin
Answer:
64978256+8734965+709685+1 = 74,422,907