Ans:

1– **208 chicken pies**

2– **17 1/3 kg**

3– **$144**

1u –> $36 + $36 = $72

$72 × 2 = **$144**

4– **7 cm**

Area of big rectangle –> 14 cm × 9 cm = 126 cm²

Area of unshaded rectangle –> 126 cm² — 98 cm² = 28 cm²

Length of AB –> 28 cm² ÷ 4 cm = **7 cm**

5– **35 minutes**

Time the piano lesson ended —> 1h 40 min after 11 30 –> 13 10

Time duration between 13 10 and 13 45 —> **35 minutes**

6– 3**2.5 kg**

Alison + Brenda –> 61.5 kg

Alison + Christine –> 67 kg

Brenda + Christine –> 63.5

61.5 kg + 67 kg + 63.5 kg = 192 kg

A + A + B + B + C + C –> 192 kg

A + B + C –> 192 kg ÷ 2 = 96 kg

96 kg — 63.5 kg = **32.5 kg**