Please tell me the solution with explanation and working

0.318

Step-by-step explanation:

on division with 10, the value reduces decimal moves forward

on multiplication, the value increases decimal moves backward

eg: 3.18 x 10 = 31.8

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