Liam had a number of chocolates in his pocket. he decided to give most of them away before they melted. so he gave two-thirds to lucy, then one-fifth of the remainder to his mother, which left twelve for himself. what was the original amount of chocolates?

The heaviest 16% of all men in weight weigh more than how many pounds ?

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %