What the length of CE?

CE = 3.5

Step-by-step explanation:

10 = 5

25 = x

x = 12.5 perimeter of DCE

4+5+x=12.5

x = 3.5

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