What are the possible dimensions for a skateboard park with an area of x^2 + 15x + 56

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Find the smallest number by which the given number should be divided to make a perfect cube(with steps or the answer will get reported) a.108 b.2187

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)