3. Round off the following numbers to three decimal places:
a) 31,1104
b) 0,10989​

311.104

010.989

Step-by-step explanation:

how long did the flood last

step-by-step explanation:

then i will answer

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