Y=2x+1, y=-4x+7 solve using substitution

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi