You start with $15 and save $8 each week. what algebraic expression models models the total amount you save ? a. 8+15w b. 15-8w c. 15+8w d. 23w

Ahydroelectric plant takes energy from water and turns it into electrical energy. what are the transformations of energy in the water molecules that are used in the process of generating electricity this way?

What equation is used to calculate the weight of an object on a plant ?

Three resistors are connected in series across a 15-v power supply. if the potential drops across resistors 1 and 2 are 4.1 volts and 3.1 volts, what is the exact potential drop (in volts) across resistor 3?