You are given that a 7.6.54 to 3 significant figures) and b = 123 (to 3 significant figures): Calculate upper and lower bounds for a+b, give your answers to 3 significant figures:

What are the coordinates of the hole in the graph of the function f(x) ? f(x)=x2−9x−3 enter your answer in the boxes.

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?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?