Answer:
Step-by-step explanation:
Fixed monthly fee = $20
Amount charged per minute for long distance calls = $0.20
denotes total cost such that 
minutes are used for long distance calls.
Amount charged for minutes for long distance calls 
Therefore, an equation for the total cost, C, when N minutes are used for long distance calls is
Answer:
Step-by-step explanation:
Total amount of Money saved by Manny is $150. He wants to buy a digital player with it.
The digital music player costs $89, and each song costs $0.99. Let x represent the number of songs that he can afford. This means that the cost of x songs would be
89 + 0.99x
If Manny spends no more than $150, before tax, the number of songs that he can buy will be
89 + 0.99x = 150
0.99x = 150 - 89 = 61
x = 61/0.99 = 61.6
He can buy 61 songs
Answer:
6 nonfiction books
Step-by-step explanation:
if it's fiction to non 9:6
if it's non to fiction 6:9
(you may need to simplify)
The solutions for 
is option 3. 
Step-by-step explanation:
Step 1:
First, we must bring the equation to the form of 
So becomes 
The value of a is the coefficient of the 
term, the value of b is the coefficient of x term and c is the coefficient of the constant term.
Comparing the above equation to 
we get 
and 
We have the formula 
Step 2:
By substituting the known values, we get
This is the third option.
