Answer:
Incorrect.
Step-by-step explanation:
6 + x = 19
Plug in when x = 12
6 + 12 = 19
18 = 19
It is incorrect, so 12 is not a solution.
B because if you multiply .15 and .45 by 100 you get 15% and 45%. 45% is much higher than 15%
Answer
v = 1000 cubic cm
Step-by-step explanation:
The formula for Volume of Cube is V = 
in this case the sides are 10 cm so we plug in the numbers
v = 
v = 1000 cubic cm
18 if it’s not, then 21. I did ratios i long time ago so i don’t fully remember them.