What is the root word of promissory? a) miss b) missory c) prom d) promise

The root word is D) promise

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D) promise

Explanation:

Promissory: containing or implying a promise.

The root is "promise," this is related to the promissory note that the bank emited some time ago that was used to support their payment, the suffix -"tory" or "ory" turns the word into its adjective form, implying something that has a promise on it, just as the promissory note.

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

the answer is b-$11,337.