Step-by-step explanation:
A formula that is used to find the time period of a cyclic phenomena based on the frequency as follows :

f is frequency
We need to solve the formula for f in terms of T. Cross multiplying the above formula such that :

Therefore, this is the required explanation.
Answer:
this is false because 5/18 is equivalent to 10/36
7.$56,8.-$17,500,9.$810,10.-45,11.$-45,12.-$1,368,13.$27,14.$8,848,15.$390,$209
Answer:
There are 40 more females than males.
In total there would be 60 females, and 20 males.
Step-by-step explanation: