What number would you add to the equation below to complete the square? x2 - 13x = 0?

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period. value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

X+ y = 5 ; x - y =3 solve using linear combination