Carbon Dioxide: o2c
Water: h2o
Oxygen: o2
Water is h2o because there are 2 hydrogen molecules and 1 oxygen molecule.
h2 = 2 hydrogen molecules
o = 1 oxygen molecule
Answer:
Supplementary
Step-by-step explanation:
135+45 =180
So Option C
Answer:
Step-by-step explanation:

Answer:
125
Step-by-step explanation:
5^3 = 5 x 5 x 5
5 x 5 x 5 = 25 x 5
25 x 5 = 125
Answer:
$12.68
Step-by-step explanation:
Multiply the price of one pound by the amount of pounds you're buying,
8.45 x 1.5
= 12.675
Round up
= 12.68