On the face of it, [5.3%, 8.65%].
_____
If you mean that up to 8.65% may be added to the base 5.3% rate, then the total can be in the range [5.3%, 13.95%].
Answer: the bottom one
Step-by-step explanation:
i think its the bottom one i did some math
z equals -1 because 8 time negative one equals negative 8 plus 8 equals 0
Answer:
the expression is not factorable with rational numbers.
Sure, I have this strategy to make a sheet with questions of that chapter and do that before I study the chapter so I can see if I know a little or a lot of that chapter