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Which of the following is a justification used while proving the similarity of triangles lom and mon

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative

Anewly planted tree needs to b stacked witg three wires.each wire is attached to the trunk 3ft abouve the ground and anchored to the ground 4ft fromthe base of the three