The answer is B. 45m/s north
Answer: 
Step-by-step explanation:
The first step to solve the exercise is to make the conversion from meters to centimeters.
Since
, then the dimensions of the wood board in centimeters are:

Now, you must find the Greatest Common Factor (GCF). The steps are:
- Descompose 100 and 60 into their prime factors:

- Multiply the commons with the lowest exponents:

Therefore, the side lenght of each square must be:

Answer: 1
Step-by-step explanation: the lowest number they divide into evenly is 1
Answer:C
Step-by-step explanation:
78-17.5*2 = 43 so C