Answer: I dont know the answer but i did some research and i got you some notes i hope they help!
Step-by-step explanation: :D
Answer:
28
Step-by-step explanation:
because it's value increases by 28 every month
Answer:
No
Step-by-step explanation:
The square root of any negative number is not a real number.
Answer:

Step-by-step explanation:
Question: 5 - 7(z+1) = 7(-9-3z)
We multiply the number in front of the bracket first, since that is multiplication.
--> 5 -7z -7 = -63 - 21z
--> -7z -2 = -63 - 21z
Now, we move all the z and all the numbers to each side.
--> -7z +21z = -63 +2
--> 14z = -61
--> z = -61/14
This cannot be simplified further, so z is -61/14.