Answer:
B.
Step-by-step explanation:
According to the graph the function is defined for all real number except -3 and 7 (where the two red dashed vertical lines cross the x-axis)
so our function should be :

Answer:
9+15i
Step-by-step explanation:
81 is a counter example of the conditional statement given.
81 has factors other than itself, 1 and the square root of 81 which is 9.
81 has factors of 3 and 27 which are not listed.
-4r+5=25 -4r=20 r=-5
typing this to get to 20 characterssss
Answer: A number increased by 8.1' .