Michael wants to save up to buy a new bike that costs $600 using the method described in Problem 2. How many weeks will it take him to reach his goal? Show your work and explain your reasoning to support your answer.

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Step-by-step explanation:

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.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value