Find the missing side of the right
triangle and simplify your answer.

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

With alll of except for the 2 that i did already