a grocery delivery serice charges a $10 delivery fee per order. If the order is $159 then what percent is the delivery fee

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Can someone answer this question for me

If you apply the changes below to the linear parent function f(x)=x what is the equation of the new function vertically stretched by a factor of 3 flip over the x axis