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:

Please refer the pictures below-
Hence the area of the road is 9600m2
it would be the third one, 2/3
Not a sufficient enough question, pls elaborate.
Answer:
2 x54 + 2 x 54
108 + 108
216
Step-by-step explanation: