3.45e5 I'm pretty sure, I hope this helps.
Count by 1 1/2's<br><br>
0, 1 1/2, _, _, _, _, _, 10 1/2, _, _, 15
DanielleElmas [232]
2, 2 1/2, 3, 3 1/2, 4, 41/2, 5, 5 1/2 6, 61/2 so on and so forth
-25 + 2 = -23 and... -25 × 2 = - 50
hope that helps :D
