Help with story problems!

1. In a vontorversial school vote, only 19 percent of the teachers vote yes, whereas 95 percent of the students voted yes. If all teachers and students voted and 91 percent of the voters voted yes, what is the student to teacher ratio?

2. The density of the wood of a pine tree is 35lbs/ft^3. The tree is 72 feet high and the diameter is 3 feet. Ten percent of the weight of the tree is contained in the branches and foliage. If the trunk of the tree is a right circular cylindar, estimate the weight fo the tree above the ground.

3. In 1991, the separation between college football goalpost uprights was reduced from 223 feet, 4inches to 18 feet, 6 inches. To the nearest thenth of a percent what was the reduction?

4. A squater with side length 6 inches is rvolved about a diagonal as an axis. Find the volume of the solid created by this revolution.

Any help would be great!

Thanks!