Build several models of his tree house out of different materials, and see which model holds up best to wind, water, and ice.
Answer:
amethyst, mauve, lilac, burgundy, byzantine, glacous, periwinkle, sage green
F ( 18 ) = 1,50 * 18 + 12.50 = 27.00 + 12.50 = $39.50,
x - number of movies.
Answer: D ) $39.50; this is the amount Kelsey pays for 18 movies in 1 month