Lana's bus is usually on time. but this week, she waited 18, 20, 35 ,19 and 35 mintues . estimate the total time she spent waiting for the bus. a.100 minutes b.120 minutes c. 130 minutes d.140 minutes me

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 %