A12 ounce can of store-brand tomato sauce costs $ 1.37 at a supermarket. the unit price of the sauce is listed on the shelf below the cans. to the nearest tenth of a cent, what should the listing show as the unit price?

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.