find an equation for the perpendicular bisector of the line segment whose endpoints are (8,9) and (4,-3)

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.

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10