For which of the following compound inequalities is there no solution? A)- 3m < 6 and 4m > 24
B)m + 7 < 8 and - 5m 2 10
C)3m +7 27 and -4m +85 – 12
D)3m < – 21 and m + 24 > 19

C)3m +7 27 and -4m +85 – 12

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