23+17.25 = 40.25km.

2x40.25 = 80.5km.

A: It takes 40.25 kilometers to reach the destination. 80.5 kilometers round trip.

2. Solution: (33-3X4)/6=3.5 (yuan)

3X4= 12 (yuan)

33- 12=2 1 (yuan)

2 1- 12=9 (yuan)

A: Every bag of biscuits, 3.5 yuan. Cookies cost a lot of money, 9 yuan.

It seems that you are a pupil, but this question needs Pythagorean theorem in middle school. Will you miss the data? Pupils can't solve this problem without knowing the height of the trapezoid.