A baby animal costs half as much to keep as an adult. Write an expression to show how much it costs per week to keep the baby animal where x is the number of pounds one adult eats in a day. Simplify your expression.

extrapolate the data in a linear manner to predicate a value

Step-by-step explanation:

To start, assign the variables to unknowns, known values to constants, and relate them by the relations between the variables and constants.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.