Landforms tend to weather and wear down over time. The Rocky Mountains are thought to be about 9 million years old. What change would an observer most likely see if he could look at the mountains again after another 9 million years? * 5 points
the mountains would be exactly the same
the mountains would be much smaller and more rounded
the mountains would be taller than they are today
the mountains would be the same height but in another country

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form