Answer:
C.
and 
Step-by-step explanation:
before answering the problem let us remind the formula for square of sum and differences


We are going to use the above two formulas to solve each part and come to an answer
A. 


Hence this option is not correct pair
B. 


Hence this option is also not correct pair
C. 


Hence this option is correct as it have equivalent pair
D. 


Hence this option is also not correct pair
Answer:
The last one. For every 1 free throw they donate $0.50
Step-by-step explanation:
Answer:
and 
Step-by-step explanation:
We will take numbers to one side and variables to one side eliminate the "Square" with "Square Root" and solve for the variable x. The process is shown below:

Now, we need to reduce the radical by using the rule shown below:

Now,

The correct answer is
and 
<u>Note:</u> squaring positive and negative makes the same answer
14,800=60x+16y
x+y=441
that implies y=441-x so
14,800=60x+16(441-x)
14,800=60x+16*441-16x
14,800-16*441=44x
7744=44x
x=176 kids and 441-176 adults
There are 162 tens but if you want to be exact, there are 162.7