Answer:

Step-by-step explanation:
La tercera parte = 1/3
Cuando dicen "de un número" se refieren a una literal (variable) = X
Y el cuádruple de un número = 4X
It should be 120ft^2. you multiple like you would a cube then divide by two
I think it's 240 mile per hour
60sec.= 1min
60min.=1hour
60×60=3600secs.
3600÷15=240
Answer:
the atoms can have different numbers of valence electrons