Acollege student is looking at her monthly checking account records. on september 1, 2008, her checking account held a balance of $1,050. at the end of march 2009, her checking account held a balance of $800. what is the monthly rate of change for the student’s checking account over the period september 1, 2008 through march 31, 2009?

The monthly rate of change would be $35.71 a month

Step-by-step explanation:

There are 7 months between September 1 and the end of March of next year

The difference between the initial balance and the ending one is

1050 - 800 = 250

If we divide this amount between the 7 months, we get 250/ 7 = 35.71

The monthly rate of change would be -$35.71 per month.

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

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step-by-step explanation: