A 209-yard-long road is divided into 16 parts of equal length. Mr. Ward paints a 4-yard-long strip in each part. How long is the unpainted strip of each part of the road? Show or explain your work. A scientist needs 70 milliliters of distilled water for each of 15 experiments. She has a bottle that contains 975 milliliters of distilled water. Is there enough water in the bottle for all 15 experiments? Show or explain your work.

There are 347 students going on a field trip. Each bus holds 44 students. How many buses are needed for the field trip? If each bus costs $95, what is the total cost of the buses? Show or explain your work.