I honestly think it has two solutions
X=-1
X=6
The answer is
(2n-3)(n+3)
i hope this helps :)
Answer:

Step-by-step explanation:
Total amount of water = 500 ml
Mary drank = 400 ml
<u>Left:</u>
= 500 ml - 400 ml
= 100 ml
This was divided equally among 4 friends.
So,
<u>Each friend got:</u>
= 100 ml/4
= 25 ml
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Answer:
4.3 cm
Step-by-step explanation:
By the theorem of intersecting secants outside of a circle.

Answer:
80 units
Step-by-step explanation:
The star has 10 sides. If each side is 8 units, then the perimeter is 10(80) because the perimeter is the sum of the lengths. With each length being 8, you could add 8 to itself 10 times, but it is faster to multiply.