The table shows the distribution of marks obtained by some students in a test

What is the upper class boundary of the upper quartile class?

The table shows the distribution of marks obtained by some students in a test

Find the modal class mark.

The polynomial f(x) =2x\(^3\) + px+ qx - 5 has  (x-1) as a factor and a remainder of 27 when divided by (x + 2), where p and q are constants. Find the values of p and q.

Evaluate: \(^9{∫}_1\) \(\frac{x(2x-3)}{\sqrt{x}}\) dx

Given that (p + 1/2√3)(1 - √3)\(^2\) = 3- √3,

 find x the value of p.