Using only addition, how do you add eight 8's and get the number 1000?

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

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?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?