Problem: Math Problem
Solve 0 = 104*r - 246*r + 284 for r.

A: 2

Problem: Math Problem
Solve 390*s - 4119 = 24023 + 15538 for s.

A: 112

Problem: Math Problem
Solve -355*k + 2983 + 567 = 0 for k.

A:
10