The second one because it allows for all the points to be presented
<span>System 1 and system 3, because the second equation in system 3 is
obtained by adding the first equation in system 1 to three times the
second equation in system 1.</span>
Answer:
1440
Step-by-step explanation:
40% of 3600
40% = 0.4
of = ×
40% of 3600
0.4 × 3600 = 1440
the light bulb uses 8100 total watts