My school is planning a field trip and over and buses and vans for the trip each bus carries up to 60 students requires for chap
erones and cost $1000 to charter a bank turns up to 10 students requires two chaperones and cost $100 for gas at least 300 students plan to attend and 36 parents offered to chaperone find the number vans and buses the school should rent to minimize the cost
Sand dunes (both active and stabilized by vegetation) can be found along beaches, and in arid or semi-arid regions. Dunes are mounds of loose sand created by wind and are the most well known aeolian features
