Answer:
AED 50$
Step-by-step explanation:
8 pencil * 3 +5 pens *6
The picture is completely black I’m not sure if that’s what you’re trying to fix but I think you didn’t uploads it correctly.
Number 6 would be

because all of the other numbers are irrational numbers
You just divide 15 by 3 and that equals 5
X^2 + 4x -21
= (x +7)(x - 3)
hope that helps