Acircle has the equation (x−13)2+(y−1)2=4.
a: what is the center of the circle?
b: what is the radius of the circle?

select two answers: one for question a, and one for question b.

b: 2–√
b: 4
a: (13,1)
a: (−13,1)
b: 2
a: (−13,−1)
a: (13,−1)

On a piece of paper graph f(x)=5•(0.4)^x

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Ineed to know the answer to this algebra question.