A fair spinner has 12 equal sections: 3 red, 4 blue and 5 green. It is spun twice.
What is the probability of getting the same colour twice?

2/3 is the correct answer!

1 is c

2 is a

3 is a

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