Answer:
17 = x
Step-by-step explanation:
720 = 110 + 8x -1 + 5x + 36 + 116 + 7x + 19 + 6x - 2
720 = 278 + 26x
442 = 26x
17 = x
The side length has to be between 2 (=9-7) and 16 (=9+7). In both these corner cases the triangle will have collapsed to a line.
So the correct answers are B,C,D and E, and F is a corner case. Theoretically I suppose you have to count F in as a valid answer.
I give numbers to the box, box 1 to 9 so you can understand my explanation well. See image attached.
Fill in Box 4box 4 multiplied by box 2 is equal to box 5
box 4 × 0.3 = 1.5
box 4 =

box 4 = 5
The number on the box 4 is 5Fill in Box 8box 2 multiplied by box 7 is equal to box 8
0.3 × 15 = box 8
box 8 = 0.3 × 15
box 8 = 4.5
The numbers on the box 8 is 4.5Fill in Box 3box 3 multiplied by box 7 is equal to box 9
box 3 × 15 = 6
box 3 =

box 3 = 0.4
The numbers on the box 3 is 0.4Fill in Box 6box 3 multiplied by box 4 is equal to box 6
0.4 × 5 = box 6
box 6 = 0.4 × 5
box 6 = 2
The number on the box 6 is 2
Answer:
1. 20² = 400
2. 4⁴ = 256
3. 2⁷ = 128
4. 3⁵ = 243
5. 10³ = 1,000
6. 7⁶ = 117,649
7. 25³ = 15,625
8. 5⁷ = 78,125
9. 6.5² = 42.25
i wasnt really sure what you meant but i hope this helps