For each ordered pair, determine whether it is a solution to 2x - 5y=11. Is it a solution?

(x, y)
(3, -1)
(-7,-5)
(-9,4)
(4,2)

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)