Why are basic facts needed when dividing large numbers

Some basic division facts are needed to follow for dividing numbers. The repeated subtraction of the same number is expressed by division in short form and long-form. Share 12 pencils between 2 children. This means 12 pencils have been divided into 2 groups of 6 pencils.

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950