If Zoe order a book form store y how much tax will she pay

27 is what percent of 108? 27 is % of 108

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project