One week, heather opens a bank account with $125. each week, starting the second week, she deposits $25 into her account. what is the explicit rule for amount of money heather has in her account after n weeks?

The explicit rule for amount of money Heather has in her account after n weeks is .

Step-by-step explanation:

It is given that Heather opens a bank account with $125. Each week, starting the second week, she deposits $25 into her account.

It means the initial amount is 125 and the common difference is 25. The sequence is

125, 150, 175,...

The explicit rule is

Where, a is first term and d is common difference.

The explicit rule for amount of money Heather has in her account after n weeks is

Therefore the explicit rule for amount of money Heather has in her account after n weeks is .

this is answer of 144 cubic meters

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