Calculate the unit price of each of the following items:

a$.$ Motor oil$-2\mathrm{.}5$ quarts for $$1\mathrm{.}95$cents$/$quartb$.$ Cereal$-15$ ounces for $$2\mathrm{.}17$cents$/$ouncec$.$ Canned fruit$-13$ ounces for $89$ centscents$/$ounced$.$ Facial tissue$-300$ tissues for $$2\mathrm{.}25$cents$/100$ tissues