What is the value of k? 11=−3k−22−8k

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Math each whole number with a rational,exponential expression

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)