1)Set up a rational expression equation and solve it in order to answer this question:

A swimming pool is being filled using two hoses, A and B. If they were working by themselves, hose A would take two hours less time to fill the pool than hose B. Working together, they fill the pool in 8 hours. How long would it take each hose to individually fill the pool?

2.)Set up a rational expression equation and solve it in order to answer this question:

A jet travels 360 mph in still air. It flies 480 miles with the wind and 480 miles back against the wind in a combined time of 1.4 hours. Find the wind speed.

3.On average, the coffee beans from 14 trees are needed to produce about 8 kg of coffee.

A.)How many trees are needed to produce 1000 kg of coffee?

B.)How much coffee can 1000 trees produce?

4.)One of the common screen size ratios for televisions nowadays is 16:9 (long side to short side), assuming a rectangular screen.

A.)Suppose that a TV screen's long side measures 40 inches. How long is its' short side, assuming a 16:9 ratio?

B.)Suppose that the Diagonal of a TV screen measures 40 inches. How long are the sides of the screen, assuming a 16:9 ratio?

Any help is appreciated. I sorely lack at turning word problems in to math problems.