Which of the following is a tool for managing interest

If (m + n) = 9 and mn = 14, then find the value of (m² + n²).

What value should come in place of question mark (?) in the following question. (You need not to calcualte the exact value)

(36.004 + 34.997)

If a = 2 + √3, then the value of `(a^(6) + a^(4) + a^(2) + 1)/(a^(3))` is

If a = 701, b= 703 and c= 706, then find the value of a³ + b³ +c³ –3abc?

The area (in sq, units) of the triangle formed by the graphs of 8x + 3y = 24, 2x+8 = y and the x – axis is:

Rs. 25200 is invested in 3 parts in such a way that Simple Interest on 1^st Part at 4% per annum for 3 years, Simple Interest on 2^nd

105, 111, 123, 141, ?, 195

The sum of two numbers is 45 and their difference is 9. What is the larger number?

If (a + b) = 7 and ab = 10, then find the value of (a ²  + b ² ).