C+6

9. Notice that the sentence says "has more than 9 pieces of candy" meaning that it could be equal to or greater than 9.
Answer:
I answered it using pictures because I dont know how else to put the answers down.
The first one is A, the third is D, the fourth is D, the fifth is 4, the sixth is D, the seventh is D, the tenth is D. Sorry I couldn't do all but some.
Answer:
27.5 mm
Step-by-step explanation:
Let the side length of each of the side of the base of the pyramid be a, hence:
perimeter of square = 4a
80 = 4a
a = 20 mm.
The distance from the middle of the square pyramid to the side = r = half of the side length = a/2 = 20 / 2 = 10 mm.
r = 10 mm
The slant height (s) = 17 mm, Let h be the height of each of the pyramid. Using Pythagoras theorem:
r² + h² = s²
17² = 10² + h²
h² = 17² - 10² = 189
h = √189
h = 13.748 mm
The length of the game piece = 2 * h = 2 * 13.748 = 27.5 mm to nearest tenth of a mm.