Answer:
B
Step-by-step explanation:
21×1=21
21×2=42
21×5=105
An inequality I believe so:
p should be larger than 7.0 but less than 7.8 for a normal pH balance.
Only one answer is between 7.0 and 7.8 therefore 7.3 is the answer.
Hope this helps!
Yes
Reason - figure b has been increased by 3 (x3 for each side)
Eg. figure b - 1. Figure a - 3
For the volume you have to cube (hence the name) the edge length:
(2.7)³ = 19.683 cm³
