At a building site there are 16 pallets with stacks of cement. The toatal weight of all the pallets is 4,856 pounds. Each pallet wheighs the same amount. How much does each pallet of cement weigh?

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Can any one me with the answers to these questions asap?

What is an alternate exterior angle