Given the equation of a circle, x^2 + y^2 - 6z + 2y + 1 = 0, find the coordinates of the center and the length of the radius. Coordinates for the center:( , )
Length of the radius = units

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

What is the perimeter of square abcd? units units 28 units 37 units

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?