exam Maths Puzzle Numerical Ability

n q
2 11
4 17
5 23
8 29
10 35
Whats is the rule of this algebraic expression?

Which one of these senetences best describes this rule.
Q=(3+N)*5 Q=3*(N+5) Q=3N+5

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What is the answer to radical over 18 - radical over 8=

Thanks for all your help.
5. The amount of rice cake mix to be used varies directly with the number of people who partakes of this food. Suppose that it takes 7 cups of mix to serve 10 people.
a. Write the