Pls help me with this:(

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

If rt is greater than ba, which statement must be true ?

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)