The admission fee at a carnival is $2.50 for children and $7.00 for adults. On a certain day, 1400 people attended the carnival and the admission fees totaled $5822. How many children and how many adults attended the carnival that day?

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 %