ANSWER SOON PLS Which of the following is a false statement?
A
The numbers we use today came from Arabic numerals.

B
Muslim doctors knew about hygiene and blood circulation.

C
There were no mosques on the African continent.

D
Muslim scientists developed a device that allowed sailors to navigate by the stars.

The answer is C There were no mosques on the African continent.  

Step-by-step explanation:

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