(A)How many ways can a 2-person subcommittee be selected from a committee of 9 people? (B)How many ways can a president and vice-president be chosen from a committee of 9 people?

abde or 1,2,4, 5 is the answer

step-by-step explanation:

goog may have it for you

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