Answer:
2
7
–
3
8
=
– 5
56
Result in decimals: -0.089285714285714
Calculation steps:
2
7
–
3
8
=
2 × 8
7 × 8
–
3 × 7
8 × 7
=
16
56
–
21
56
=
16 – 21
56
=
– 5
56
I need to see the picture so I can answer

(i)

(ii)

Step-by-step explanation:

height of ball (a) = 10m
fraction of height decreases by each bounce (r) = 2/3

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The answer is A i believe