An expression for that would be 10u
There were 64 ducks in the beginning
Answer:

Step-by-step explanation:
Taking the succession:

You can multiply and divide by 1-r without chaging the result:

Distributing the upper part of the fraction you have:

As can be seen all the intermediate members will be canceled by a same member with opposite sign, only
will be left so:

Keep in mind that, when the logarithm base is not explicitly written, base 10 is assumed, therefore,
Answer:
<u>the order in which the ratio is drawn should be the same as listed.</u>
Explanation:
What this means is that since a ratio compares the sizes of two numbers (eg 4:2 or 4 ratios 2 or
), it would be wrong to change the order of a ratio when drawn in a diagram.
For example, changing the order to (2:4 or 2 ratios 4), which then because
not
. Hence, it is important to remember that diagram of the ratio of two or more quantities should be the same as listed.