The function f(x) = 2x + 3x + 5, when evaluated , gives a value of 19. what is the functions input value? 1 -1 2 -2 -3

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

Standard deviation of 19,29,21,22,23