A, B & C form a triangle with ∠
ABC = 90°.
Given that AC = 8 mm and AB = 7 mm, work out BC.
Give your answer as an exact surd

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.