I believe it is C. Multiply 640 by 7.5. You should get 4800
Answer:
El volumen es la cantidad de espacio tridimensional que ocupa un objeto. El volumen se mide en unidades cúbicas.
Por ejemplo, el siguiente prisma rectangular tiene un volumen de 181818 unidades cúbicas porque está hecho de 181818 cubos unitarios.
Step-by-step explanation:
Answer:

Step-by-step explanation:

Answer:
1/4
Step-by-step explanation:
The slope of a line is the steepness of a line.
The slope of a perpendicular line is always the negative reciprocal of the slope of the line it is perpendicular with.
Since line C has a slope of -4, the negative reciprocal of that is 1/4.
Reciprocals are two numbers that multiply together to get 1.
For example, -1/4*-4/1=1
Therefore the negative recipricol is 1/4