Topic:(derivatives) paki sagutan po please asap huhuhu

1. find y' of y=x+1 / x-1
2. find y'' of y = x(x+2)
3. find y'' of y = (3x+1)(x-2)
4. find y'' of y = (3x+4)squared
5. find y' of y = 3x-2

with solutions narin po if kaya pls, nagmamakaawa po ako huhu​​

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.