Answer:
Step-by-step explanation:
Let's see how well I can explain this.
is the same as a 30 degree angle which is in quadrant 1. If you picture the unit circle, right in the center of it is the origin. If you draw a straight line from 30 degrees and through the center (the origin), you will automatically "connect" with the reference angle of 30 (this is true for ALL angles on the unit circle). This puts us in quadrant 3. In quadrant 3, x is negative and so is y. So the terminal point of the reference angle for 30 degrees has the same exact values, but both of them are negative (again, because both x and y are negative in quadrant 3). I can't see your choices but the one you want looks like this:

2 dozen = 24
24 cookies = 3 cups
24 x 2 = 48
48 cookies = 6 cups
24 x 3 = 72
72 cookies = 9
9 ~ 8
~
i think the anwser is b. 8
Answer:

Step-by-step explanation:
We need to find the solution to the following system of equations:
and 
By plugging the value of 'y' into the first equation we have that:
⇒ 
Solving for 'x' we have:

So, the solution to the system of equation is: (37.5, -30)
Answer:
Contrary to addition, subtraction doesn't have the associative property. If we subtract the first two numbers, 10 minus 5, it gives us 5. ... Changing the way of associating the numbers in subtraction changes the answer. Thus, subtraction doesn't have the associative property.
Step-by-step explanation:
For the second part, you have to subtract 1 from the number of hours and raise it to that power.
For example, when h = 1, you have:
2^(1 - 1)
2^0
1
The 5 values in your table would be:
1 2 4 8 16