Lucas collects marbles. every time lucas buys forty marbles for four dollars, his grandmother buys lucas twenty marbles for two dollars. if lucas buys two hundred marbles, how many marbles does his grandmother buy for him? how much money does lucas spends for his two hundred marbles?

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

answer: idk

step-by-step explanation: