Answer:
I get 65.94
Step-by-step explanation: 6 15 19 11
3.14 (a²+ab) when a equals 3 and b equals 4
3.14 (a²+ab) when a equals 3 and b equals 4
3.14 (3²+3b) when a equals 3 and b equals 4
3.14 (a²+ab) when a equals 3 and b equals 4
3.14 (3²+3×4) when a equals 3 and b equals 4
3.14 (3²+3×4)
3.14 (9+12)
3.14 (21)
3.14 × 21 = 62.8 + 3.14 = 65.94
