What is the circumference of a circle when the diameter of the circle is 10 units?

31.4 or 10pi

Step-by-step explanation:

Formula: C = pi * diameter

C = 10pi

C = 10 * 3.14

C = 31.4

31.4

Step-by-step explanation:

C=Pid

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