Answer:
[tex]a = 80 \times 110 + \frac{140 \times 50}{2} = 8800 + 3500 = 12300[/tex]
14500 m
Step-by-step explanation:
110 * 220 = 24200
24200 / 2 = 12100
60 * 80 = 4800
4800 / 2 = 2400
2400 + 12100 = 14500
