I'd say what you would do is:
You can either
1. Add 15 and 18 together and then divide by 2
OR
2. Since there is a 3 number difference between 15 an 18, just add 3 to 18
Answer:
12x + 50
Y - intercept = 50
Slope = 12
Step-by-step explanation:
The y - intercept represents the original registrational fee even if you have never taken lessons.
The slope represents what you have to pay every time you take a lesson.
Answer:
-147
Step-by-step explanation:
-8 x 25 + 60 -7
Answer: more than 1/2
Step-by-step explanation: 1/2 equals 2/4 so 3/4 is more.