My Waece maths past questions

omolo

Find the area of shaded region z=-0.89

Of the 168 hours in a week as a full time student you should spend how many hours per week on school work?

At work claire has a deadline that is rapidly approaching as she works she finds that she is doing more work in a shorter amount of time than usual she thinks more quickly and her senses and memory are sharper what is responsible for claire working more efficiently