if the conditional statement " If I use my cellphone to much, my bill will be expensive," is true, which other statement must also be true. A. None must be true. B. If my bill is expensive, I used my cellphone to much. C. if I do not use my cellphone to much, my bill will not be expensive. D. if my bill is not expensive, I did not use my cell phone to much

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.