<prompt> Translate the following text to SwahiliUnless Wanamaker was willing to pay double for reaching the right half of the people, his total ad spending would go down and not up.  <response>: Wanamaker alidai kuwa ni lazima kulipa mara mbili kwa kufikia nusu ya haki ya watu, kwa hivyo matumizi yake ya jumla ya matangazo yatashuka na sio kuongezeka. 