exam Maths Puzzle Numerical Ability

In an electronics experiment 1 white cord is connected to 3 black cords. Each black cord is connected to 5 gray cords. Each gray cord is connected to 7 blue cords. How many blue cords are there?

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Can I get some help here?


Graph each function and state its domain and range.
g(x)= x+2



Thanks When figuring travel and distance, I know that distance = rate x time. Is there a logical way to set up an equation when what you are figuring for is "time"?

Thanks