If a normally distributed score count has a mean of 120, and a standard deviation of 20, what is the probability that a randomly selected value is greater than 160?

Find the volume of the solid generated when the region bounded by y= x and y= 4√x is revolved about the x-axis the volume of the solid is: (type an exact answer cubic units)

Ineed me i stuck and i don’t want to get it wrong

Can someone me with the property questions for 12 13 and 14 plz