Sig Figs, as they are also known, are important only in Science. But there are three ways you can determine how many sig figs there are. Non-Zero digits are sig figs. Any zeros between two sig figs are significant. (EX: 7008) And, lastly, A final zero(s) in a decimal are significant. (EX: 0.76540800) Last two zeros are significant.
Answer:
You can buy 40 tacos
You have enough money
Step-by-step explanation:
Given


--- missing from the question
Required
Determine if you have enough amount
The number of Tacos that $20 can afford is calculated as:

So, we have:


-- i.e. the number of Tacos will go round the 37 students
Hence, you have enough money
To do this problem you would need to have at least one side length AND the hypotenuse to figure out the other side length.