exam Maths Puzzle Numerical Ability

Can I get some help here?

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

Thanks

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exam Other Question

a number u times 5 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?