Answer:
24.61%
Step-by-step explanation:
The distance covered in first week = 195 miles
The distance covered in the second week = 243 miles
We need to find the percentage increase in distance. It can be calculated as follows :

So, the increase in distance is equal to 24.61%.
Answer:
x=45
Step-by-step explanation:
30+15=45
Answer:
3%
Step-by-step explanation:
First find the difference between the total payment and what the payment would have been prior to to the 20 days late fee. Divide that number by the amount of days overdue (20) to find the cost of each day overdue. Divide that number of what each day overdue is by the cost of the bill prior to overdue fees. Move the decimal two places to the right.
X = (12 +- sqrt (144 -4(7)(3))/14
x = (12 + - sqrt (144 - 84))/14
x = (12 + - sqrt(60))/14
x = (12 + - 2sqrt 15))/14
x = (6 + - sqrt 15) / 7
Your answer should be 76/45