The sum of the first 3 terms of a geometric series is 171 and the common ratio is 2/3.
What is the first term of the series?

Let's find b₁

b₁=81

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

80% of the cookies

step-by-step explanation: