this agreement shall be deemed to be a waiver of any subsequent or other breach of that or any other provision and no failure to exercise or delay in exercising any right or remedy under this agreement shall constitute a waiver of such right or remedy. no single or partial exercise of any right or remedy under this agreement shall preclude or restrict the further exercise of any such right or remedy. the right and remedies of the investors provided in this agreement are cumulative and not exclusive of any rights and remedies provided by law.