Wait times at an orthodontist office are typically 17 minutes with a standard deviation of two minutes what percentage of people should be seen by the doctor between 11 and 23 minutes for this to be considered a normal distribution

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Need so much on this one how many yards?