If the two numbers were plotted as values on a horizontal number line which statement would be true

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)