Step-by-step explanation:
<h3><u>
Work out George's total pay:</u></h3>
=total pay=(8x30)+20
=240+20=<u>£260</u>
<h3><u>
Work out the bonus Harry was paid:</u></h3>
=Total pay=(8x34)+bonus
300-272+bonus
300/-272 -272/-272 +bonus
bonus=<u>£28</u>
<h3><u>
</u></h3>
12 times 2 + 9 times 2 = 24 + 18 = 42 divided by 16 = 2.625
Copper: density ≤ 3.4
Iron: density=2.26
Before: 200 t
After: 800 t
