Answer:
a. 5i + 13j
b. 8i
c. 10i + 6j
Step-by-step explanation:
a. 2i + 6j + 3i + 7j = 5i + 13j
b. 3i + 7j + 5i - 7j = 8i
c. 2i + 6j + 3i + 7j + 5i - 7j = 10i + 6j
Answer:
About 48 hours or 2 days.
Step-by-step explanation:
360 + 360 = 720 + 360 = 1080 + 360 = 1440
12x4=48
Answer:
d
Step-by-step explanation:


USE CALCULATOR -_-

<em><u>STAN </u></em><em><u>TREASURE</u></em>
Step-by-step explanation:
convert 3.9 kg to grams
3.9×1000=3900 g
density = mass/ volume
= 3900/ 200
=19.5 g/cm3