Write an expression for ∑τ about the elbow. express your answer in terms of some or all of the variables fbiceps, felbow, mforearm, mball, dbiceps, dball, and g.

Vanessa deposited money into a bank account that earned 1.25% simple interest each year. After 12 year, she had earned $5.00 in interest on the account.

If no other money was deposited into or withdrawn from the account, how much was her initial deposit?