Answer:b
Step-by-step explanation:
While this problem seems confusing, the answer is rather simple.
All you have to do is the reverse of what they are asking.
This is, substract 8 to 60 and then divide by 4:

So the interval which 13 falls into is 10 to 20 and the answer is b.
Answer:
0.286
Step-by-step explanation:
12/7 x 1/6
Vertical line is a way to determine whether a functin is a function or not.
Answer: don't know sorry
Step-by-step explanation: