The temperature at 12 am was 55 degrees. The temperature dropped steadily for the next 7 hours to reach the daytime low of 20 degrees. Write an equation for the relationship between temperature and the time. PLS HELP

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

3.4a=57.8 what is the the value of a

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?