A daycare charges $115 per week for one child. Each additional child costs $65 for the week. If a family pays $505 for a week, how many total children do they have in daycare?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

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 %

Which will form a composite function?