For #10-12, use the diagram to the right

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Solve 2^x=32 and rewrite this equation in a logarithmic form

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.