Anna earned a total of $660 this week. This total was $30 less than three times the amount she earned last week. How much money did Anna earn last week

Step-by-step explanation:

($660-$30)*3=$1890

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hope it's 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