The high temperatures for the first five days in December were as follows 28, 3, -2, -4 and 12. What is the average temperature.

28 +3 +2+4+12=49

49÷5=9.8

i know the answer is 3

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