For #3 how do you find the radian measure? is there a formula?

What is the point slope form of a line with slope -5 that contains point (2,-1)

You are riding your bike and notice the square sign above. you mentally draw a straight line from point a to c. describe the angle relationship between dca and bca

Neal buys a board game. he pays for the board game and pays $1.54 in sales tax. the sales tax rate is 5.5%. what is the original price of the board game, before tax