Answer:
24.5
Step-by-step explanation:
24.5 + 24.5 = 49
The center has coordinates h = -2, k = 5. The radius is sqrt(6). The equation for a circle is as follows:

. Filling in using our given info we have

. Simplifying that down we have an equation of

. There you go!
Answer: They do it to a lot of people. I don't know why though
Step-by-step explanation:
The order of operations is PEMDAS; which stands for Parenthesis, Exponents, Multiplication and Division, and Addition and Subtraction; this is the order used to solve expressions, equations, and inequalities.
B=5
You need to get b by itself on the left side. 4b is multiplying 4 to b. You need to the opposite when you want the variable by itself. You would divide 4 to each side. 4 cancels out on the b so it turns into b. Then 4 divided by 20 is 5. B=5