Arithmeticall questions : touching the buying or exchange of annuities; taking of leases for fines, or yearly rent; purchase of fee-simples; dealing for present or future possessions; and other bargaines and accounts, wherein allowance for disbursing or forbeareance of money is intended; briefly resolued, by means of certain breuiats, calculated by R.W. of London, practitioner in the arte of numbers. Examined also and corrected at the presse, by the author himselfe.