If 5x + x² > 100, then x is not 10 8 7 9

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Need solving this 2nd limit problem.