Hello here is a soultion :
<span>the greatest common factor of the polynomial is : 7
</span>-7y 2 + 7y + 84=7(-y²+y+12)
Answer:

Step-by-step explanation:
= 25
Find the square root of 25 to find the value of x (get rid of the exponent).
= 5

Hope this helps :)
8.11 mm I think i tried to do that it coud be wrong tho so check it
Answer:neither
Step-by-step explanation:
There is no ratio to multiply by or number to add
Leticia babysat on Saturday for 5 hours. She already babysat for 4 hours which makes it (8 x 4) =$32 But she earned $72 so the rest $40 / 8 =5 hours