Answer:
17.5
Step-by-step explanation:
90% sure
Answer:-2/3
Step-by-step explanation:
Answer:
2400 mm
Step-by-step explanation:
(80 x 60) - (60 x 40)
No; we have
. Substituting these into the DE gives

which reduces to
, true only for
.
<em>The answer is below...</em>
A.