The price for the items ordered at lunch was $31.50. how much would the price be after tax and tip if the tax rate is 9% and you plan to tip 18% of the new total?

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.