We know it's for helping students so chill but I'll help, the number is 9 million and it's in the millions. You see all you have to do is classify the place value and say what the number is called.
5.
I think you mean pyramids so
surface area
there are triangles on the faces of the pyramids so 1/2BH=SA of 1 of the side so for the whole side
surface are of each side=BH
B=5
H=8
(5)(8)(1/2)=20
4 sides
(4)(20)=80= top surface area
the surface are of the base
(5)(5) =25
25+80=105 sq units
I can't see 6 or 7 so I'm done
Value of n is 7
Step-by-step explanation:
-6(2n - 7) + 2(n - 4) = -36
-12n + 42 + 2n - 8 = -36
-10n + 34 = -36
-10n = -70
⇒ n = 7
