please answer these it is urgent please and I will give a good review :)

Ifa function, f(x), underwent the following transformations,y=4f(-7(x-9))+11, f(x) wasvertically stretched by what factor?

The point (10,2) belongs to the function f(x). The function was reflected in the x-axis, verticallystretched by a factor of 7, horizontally stretched by a factor of 10, vertically translated down 3 units, and horizontally translated 4 units right. What is the x-value of the image point?

When the function y=-8x+-1 is reflected in the line y=x, it will have an invariant point (a, b).What is 'b'? Round to the nearest tenth if necessary.

If the domain and range of f(x) is [-36,8] and [29,108] respectively. What is the lower boundof the domain of f^-1(x)?