Answer: 
Step-by-step explanation:
You know that Mr. Wilson uses the following equation to find the cost:
Then, if Mr. Wilson spent $30, you can follow these steps in order to calculate how many hours he parked in the parking garage:
1. You need to substitute 
into the given equation:
2. Now, you must solve for "H":
Therefore, based on the result, you can conclude that Mr. Wilson parked his car in the parking garage for 8 hours.
The solution to this question is 20.6666666
ANSWER
The correct answer is option D.
EXPLANATION
The given function is
This a polynomial function. All degrees are greater than or equal to zero.
The coefficient being decimals does not disqualify it from being a polynomial.
The highest degree of this polynomial is 6.
Therefore the correct answer is D
Given,
567 + x = 1257
=> x = 1257 - 567
=> x = 690
Option c is correct.
