A quadratic function y=f(x) is plotted on a graph and the vertex of the resulting parabola is (3,5). What is the vertex of the function defined as g(x)=f(x+5)?

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60