There are 57 people and i want everyone to have a slice of cake and i want to pay as little as possible and i want them to be the same size so i have 20cm of cake that can serve12 people costs 13.50 per cake or 25 cm of cake that i can serve to 20 people costs 18.75 per cake how much will i have to pay for the cakes

With finding limits of multi variable !

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.