exam Maths Puzzle Numerical Ability

find the inverse function g of the given function and state the domain and range of g

y=f(x)=(x+2)^3

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exam Other Question
Solving combined inequalities
2 is less than y plus 6/2 is less than 5
AND
(4-y is less than 5 OR 4+y is less than 7) please help me to solve

Pencils cost 25 cents apiece. Pens cost 80 cents apiece. Susan spent $20 for a total of 36 pens and pencils. How many pencils did she buy?

thank you!