9 bags with 342 cans. what is the rate of cans per bag? _ cans per bag​

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

Standard deviation of 19,29,21,22,23

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?