The graph show the probability distribution of a random variable. What is the value of P(4 < X <8)?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Answer this 30 points and brainliest!

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?