So I think the rule is that you divide two exponents with the same base, you keep the base and subtract the powers.
To solve A, complete the square for both variables.
The center is (6,4)
Answer:
10
Step-by-step explanation:
6 is the width not the length
Answer:
5x
Step-by-step explanation:
Given expression: 
Take the common number 5 outside in the numerator.

Now, take x common in both the terms in numerator.

Cancel out the common factor in the both numerator and denominator.

Hence, the answer is 5x.
0.25 represents the slope of the line. For every 1 unit it goes up, it goes 4 to the right.