What will be the day of a week on 2 September 1990?

The simple interest on a sum of money is 4 / 9 of the principal and the number of years is equal to the rate percent per annum. The rate per annum is 

The value of $$(x^{b+c})^{b-c}. (x^{c+a})^{c-a}.(x^{a+b})^{a-b}$$ when (x≠0).

If the length and breadth of a rectangle are increased by 8 % and 12 % respectively, then by what percent does the area of that rectangle increase? 

Find mean of first five prime number.

The line passing through the point (-2,5) and  (6,b) is perpendicular to the line 20x + 5y = 3. Find b?

Study the table and answer the questions and give answer the following questions.

In  which year , the difference between the highest and the average marks in maths was maximum?

What are the roots of the equation log₁₀(x²-6x+45) =2?