What are some words that can stand on there own?

A word to stand on its own would be a word that is a sentence on its own.

Words Like This Are: And, Eat, Play most adjectives. Because if your friend asked you what you wanted to do you would simply say "Play." or "Read." or such thing as your name can be a word to stand on its own. If you meet a new person and they introduce themselves and ask for your name, typically you are to say "Bob." or "John." or whatever you name might be.

Hope it helped.

Sincerely,

xPain

the correct answer would be:  

a. adverb phrase

this is the answer , p = 1 + (1/10)x

step-by-step explanation:

we have,

at sea level pressure is 1 atmosphere (i.e at x =0, p0=1 atmosphere)

at depth 23 meters , pressure = 3.3 atmosphere

since the pressure increases at constant rate as the depth increases, so we can write a relation as:

p =p0 +   kx   , where p is the pressure  , p0 is the initial pressure, x is the depth and k is constant rate of increasing.

to find constant rate k, plug p = 3.3 , p0 = 1 and x= 23 meters

we get,

  3.3 = 1 + k * 23

k = 2.3 / 23   = 1/10

so we can write the function formula as:   p = 1 + (1/10)x