Determine whether each of the functions is exponential or not. 1. f(x)= x^2 2. f(x) = 3 * 2^x 3. f(x) = 3 * 1/2x 4. f(x) = 1.001^x 5. f(x) = 2 * x^3 6. f(x) = 1/10 * 5^x

What value of x is in the solution set of –5x – 15 > 10 + 20x?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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?