Solution of Question A:
- => 3(2.7 + 5) - 2
- => 3(7.7) - 2
- => 21.1
Hence, 21.1 is the answer in decimal form.
Solution of Question B:
=> (-3 + 6)² ÷ 4.5
=> (3)² ÷ 4.5
=> 9 ÷ 4.5
=> 2.0
Hence, 2.0 is the answer in decimal form.
Solution of Question C:
=> 12.5 - 1.4 × 2²
=> 12.5 - 1.4 × 4
=> 12.5 - 5.6
=> 6.9
Hence, 6.9 is the answer in decimal form.
Solution of Question D:
=> 2(3/4 - 1) + 0.35
=> 2(-1/4) + 0.35
=> -1/2 + 0.35
=> -0.5 + 0.35
=> -0.15
Hence, Option A is the correct answer.
Solution of Question E:
=> Volume = L × B × H
=> 12.05 × 3.86 × 5.11
=> 12.05 × 19.7246
=> 237.68143
=> 237.7 (To the nearest tenth)
Hence, Option C is the correct answer.
Hoped this helped.
[tex]BrainiacUser1357[/tex]
