HELP PLEASE Can you say in your own words, what you think is the difference between a greenhouse gas and a non-greenhouse gas? I've been trying for a while to compare them and I'm just confused and don't know what to do

Unlike a greenhouse, the Earth does not have a layer of glass over it. Instead, molecules in our atmosphere called greenhouse gasses absorb the heat. Greenhouse gasses include water vapor, methane, ozone, nitrous oxide, and carbon dioxide.

I've been trying for a while to compare them and I'm just confused and don't know what to do

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

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