book Maths Puzzle Numerical Ability

Solve the following inequality, write its solution and graph it.

|x/2 - 2| + 1 < 3

I give up.

Do you have to subtract 2 from each side and then go from there? Thanks for the help

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book Other Question

give an example of a function that has many values in the domain and only one element in the range. A skateboard originally priced at $146 is on sale. The price is marked down by 25% the sale tax is 8%. What is the final cost for the sakteboard?