How is a number like 73,000,000,000,000,000 more challenging to write and comprehend than a number like 73?

Because the number is bigger... and takes longer to write and read.

Because the first number is so huge. We can have a fair idea how big 73 is but its  almost impossible to appreciate the magnitude  of that first number. Also its easy to miscount the number of zeros when you are writing it.  

Numbers as big as the first number are best written in scientific form this one would be written as

7.3 * 10^16   - much easier to write this!

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

answer: (yeees, you need a poet.)

//blooming serenity//

beautiful in the morning

mysterious at night

wonderous nature souring

with all it's mystical might

the flower that blooms

to the fox that looms

nocturnal creatures

with various features

a blooming flower soon in sight

as a new little hatchling fears to take flight  

afraid to leave it's calming nest,

but dear little bird, mother knows best

as sure as there are stars in the sky,

life is not about who, where what, when or why-

it's the journey that follows

adventures we swallow

of   nature's deep wonders,

natural disasters and storm's thunders.

blooming serenity

life and nature, truly is heavenly.

-kerstien lehman

step-by-step explanation: