Please help i will mark branliest !

C

Step-by-step explanation:

Because equation C is telling us that the amount of caffeine is less than 400.

Hope this will help

c

Step-by-step explanation:

cause dector recommended less than 400 or equal to 400...so answer is c

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