2. A rectangular vegetable field, which is125m long and five times wide, walked around the vegetable field twice. How many meters did a * * * walk?

Width = 125/5=25

A * * * left (125+25)*4=600 meters.

3. Table: 120 yuan. Every chair: 30 yuan.

The school bought back 45 sets. How much does it cost to buy a set?

One set = 120+30= 150

A * * * flower 150*45=6750