Mr. smith had 4 daughters and each daughter had a brother. how many kids did mr. smith have in totle?

he had either 8 (or 5 if it is a trick question)

Step-by-step explanation:

4*2=8

4+1=5

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