1. What is the sum of all integers \(x\) that satisfy \(-5 \le \frac{x}{\pi} \le 10\)?
2. Find all real numbers such that \(\frac{2}{3} t - 1 < t + 7 \le -2t + 15\). Give your answer as an interval.
Thanks!
1. The sum of all integers x is (-1) + 0 + 1 + 2 + 3 = 5.
2. The interval is [-5/3, 16).
