Raul is building a house. on day 1, he uses 3 bags of cement. on each of the following 3 days, he uses 3 times the number of bags used the previous day. how many bags of cement does he use in the last 3 days?

24

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