Answer:
it is irrational,because the product of an irrational number and a non zero rational number is irrational
For this case we have that the complete question is:
There were 20 drinks in a cooler. Joey drank 15% of the drinks. Sandra drank 1/5 of the drinks. Hannah drank 1/4 of the drinks. Tammy drank 30% of the drinks. How many drinks are left in the cooler? a 0 b 2 c 5 d 9
We propose a rule of three:
20 ---------> 100%
x ------------> 15%
Where the variable "x" represents the amount of drinks equivalent to 15%.

So, Joey drank 3 drinks.
On the other hand, we have that Sandra drank
of the drinks:

Thus, Sandra drank 4 drinks.
In addition, Hannah drank
of the drinks:

So Hannah drank 5 drinks.
Finally, Tammy drank 30% of the drinks:
20 ---------> 100%
y ------------> 30%
Where the variable "y" represents the amount of drinks equivalent to 30%.

So Tammy drank 6 drinks.
Adding up we have:

So: 
Thus, 2 drinks remain in the refrigerator.
Answer:
Option B
you just need to divided 3 by 9 and it will be 3 or you can divide 6 by 18 and it will be the same so the unite rate is $3
Answer:
A. Definition of linear pair
Step-by-step explanation:
A linear pair of angles is formed when two lines intersect. Since angle on a straight line = 180°, angles of a linear pair sum up to 180°.
angles 1 and 4, angles 2 and 5, angles 3 and 6 are all linear pairs. Each pair = 180°.
Area = length x width
f(x) = (x + 5)(3x - 7)
f(x) = 3x^2 + 8x - 35