Asailboat’s sail has three sides that are all the same length. each side measures x−10 units. the sail’s perimeter is 63 units.

what is the value of x?

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field