Function in Ms-Excel to count number of

If x, y and z are real numbers such that (x-5)²+(y-7)²+(z-9)²= 0 then (x+y+z) is equal to

? + (35)² = (130)² - (45)² - 2850

If 1/(x+ 1/(y+ 1/z)) = 13/30, then find x+y+z= ?

If x = 99, then the value of x⁵ - 100x⁴ + 100x³ - 100x² + 100x - 1 is

For a =-4 and b = 5, value of a² – b² is:

What will come in the place of question mark (?) in the given expression?

(360 ÷ 24 + 105)% of ? = 48

If there are a total of 1000 students in the school, how many students prefer Mathematics and science?

If (a + b + c) = 9, find (a – 4)³ + (b – 2)³ + ( c – 3)³ - 3(a – 4 ) (b – 2 ) (c – 3)?