Compute for z score and z area (area between the mean and positive z score) for each set. Data set 1:
x=80, mean=75, and Standard Deviation= 4.

Please help!! Thank you.

Write a story that matches with the expression 42x-5 pls hurry

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?