PLSS help even tho it need to be done by Wednesday I wanna finish today so I can get it out the way PLSS help

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)

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

Solve for x and select the correct answer