Answer:
676 assuming the population is 3800 in 2019. If it's a different year then change t.
Step-by-step explanation:

Answer:
56 problems
Step-by-step explanation:
So we already know that the answer is: 56. However, a good help is knowing how to obtain this answer from the data provided.
Tony's quiz had 80 questions
Tony correctly answered 70% of them.
We can always write a percentage amount as a ratio by dividing the amount by 100.
.
This means that for every 100 questions, tony will respond correctly 70.
So, if Toni did a questionnaire of n questions, the amount that will answer correctly is calculated by the following expression:

If
then:

If the equation is f(x)=2x+5
The domain is 2x+5
If the range is 1, the domain is 7