I need help with transversal problems with equations

The graph of f(x)=|x| is reflected over the y-axis and horizontally compressed by a factor of 1/9. write a formula for function g(x)

Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is

Agallon of apple juice cost $7 a pack of eight 4.23oz box of apple juice $2.39 which is a better deal