Which is it? A, B,C or D

How is the number of vertices for a prism related to the name of the prism

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)

1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.