Elaine withdrew $45.00 from her savings account . she then used her debit card to buy groceries for $30.15. what was the total amount elenibtook out of her account?

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One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2