Which expressions are equivalent to 3(-2a-4)+3a

What is the inverse of the function f(x)=2x+1

What is the perimeter of square abcd? units units 28 units 37 units

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)