Answer:

Step-by-step explanation:
Notice when x increases 1, y is 4 times the previous one, so
the function is like 
To determine the constant C, put any pair of (x, y)
Use x = 0, y = 0.2, so
0.2 =
= C * 1 = C
then 
The formula to find the circumference of a circle is :

To find the radius we would divide 3.3 by 2
The radius is always HALF of the diameter.
3.3/2=1.65
Now we know r=1.65
So we plug that into the circumference formula:

pi=3.14
Once you multiply all the numbers together you get:
C=10.36m
Answer:
50, 52, 54, 55, 56, 56, 64, 65, 68, 74, 74, 76, 77, 77, 80, 81, 90, 91, 95, 99,
Step-by-step explanation:
Would assume cd means c*d
c*d is commutative because:
c*d = d*c
The result in multiplication is the same, irrespective of which comes first.
Answer: 50 minutes
Step-by-step explanation:
steps are in image.