It takes one examiner 56 hours to mark 90 exam papers.
How long should it take 7 examiners to mark 90 exam papers?
Please ! I need help on this one

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Write an equation of a line in slope intercept form that is perpendicular to the line 2x -3y = 12 and passes through the point (2, 6).

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18