exam Maths Puzzle Numerical Ability

How do you write a recursive formula for the sequence of these numbers:40, 20, 10, 5, and 5/2 ? I know that you use an=an-1 but I am not sure how to put the divide by two into the

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exam Other Question

For each of the relationships below, explain whether you think it is best described by a linear function or a non linear function. explain your reasoning thoroughly.

Your heigh
Rewrite Problem 6 into standard form. For Problem 6, refer to Example 1 (p 629) for the solution of a similar problem. Standard form looks something like:

Ax + By = C

where