Find sin(x). I need help.

Which expression converts 45 degree to radians

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)