The track increased 400m:
1600 - 1200 = 400
Use the rule of 3:
1200 - 100%
400 - x
(400 * 100) / 1200 = x
40 000 / 1200 = x
33,33... = x
The increase was of 33% aproximately.
Hope it helped,
Happy homework/ study/ exam!
(A)
we are given

we can use vertical line test
If the vertical line intersects at two points
then this is not the function
because a function can not have two outputs for same input
we get graph as
so, this is not function
(B)
we are given

we can use vertical line test
If the vertical line intersects at two points
then this is not the function
because a function can not have two outputs for same input
we get graph as
so, this is not function
Answer:

Step-by-step explanation:

Answer:
do you want us to answer all of them?
Step-by-step explanation:
The answer is 27 hope it helps