The repeated blasts from the freight train’s horn gave a headache.
a pronoun from which case will correctly complete the sentence?
possessive
objective
nominative

Objective.

Explanation: a possessive pronoun is a pronoun that indicates possession (for example mine, yours, hers, theirs, his, etc). Nominative pronouns are the ones that usually act as the subject of a sentence (for example: I, you, he, she, it, they, and we), and objective pronouns are the ones that are normally used either as the direct or indirect object of a verb, or as the object of a preposition (for example: him, her, them, etc). In the given sentence the correct pronoun to use is an objective pronoun (him/her).

we know that, volume of a rectangular prism is given by :

✿   {length × width × height}

given : the length of rectangular prism = 5.5

given : the width of rectangular prism = 6

given : the height of rectangular prism = 3

⇒ the volume of given rectangular prism = {5.5 × 6 × 3}

⇒ the volume of given rectangular prism = 99

in other words

to put it differently

for one thing

as an illustration

in this case

for this reason

to put it another way

that is to say

with attention to

by all means

important to realize

another key point

first thing to remember

most compelling evidence

must be remembered

point often overlooked

to point out

on the positive side

on the negative side

with this in mind

notably

including

like

to be sure

namely

chiefly

truly

indeed

certainly

surely

markedly

such as

especially

explicitly

specifically

expressly

surprisingly

frequently

significantly

particularly

in fact

in general

in particular

in detail

for example

for instance

to demonstrate

to emphasize

to repeat

to clarify

to explain

to enumerate