A set of 25 two digit numbers are listed below 10,17,20,23,24,28,32,39,42,25,26,52 ,55,58,61,65,66,72,75,78,79,85,94,9 7,98. What is the probability of the sum of the number's digits is odd?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Which image (a’ b’ c’ d’) of abcd cannot he produced using only reflections ?

4. a single woman uses an online cash flow calculator which reveals a cash flow of 203. what does this mean?