Answer: 
Step-by-step explanation:
For finding the quotient of the given division,
In the long division method, we will follow the following steps.
Step 1 : Here the divisor is d-2 and dividend is 
Multiply (d-2) by
and subtract the dividend by the resultant.
We get 
Step 2: Multiply (d-2) by
and subtract the remaining dividend by the resultant.
We get 
Step 3 : Multiply (d-2) by
and subtract the remaining dividend by the resultant.
We get 
Since, after getting 7 it is not possible further division,
Hence, Remainder = 7,
Quotient = sum of all expression by that we multiply (d-2) = 
We know that
if <span>Allison can complete a sales route by herself in 6 hours
then
100% of the sales route---------------> 6 hours
x%--------------------------> 1 hour
x=100/6-----> x=16.67%/hour
Allison </span><span>working with an associate, she completes the route in 4 hours
</span>then
100%------------------> 4 hours
x%----------------> 1 hour
x=100/4-----> x=25%
An associate in 1 hour complete-------> 25%-16.67%----> 8.33%
then
an associate complete in 1 hour--------> 8.33%
x hour--------------------------> 100%
x=100/8.33-----> x=12 hours
the answer is
12 hours
B E D M A S MEANS BRACKETS EXPONENTS DIVISION MULTIPLICATION ADDITION AND SUBTRACTION
By cross-multiplying, we get
15x + 30 = 24
15x = -6
x = -3 / 5