Subtract 5 from both sides: 2x=10. Divide by 2: x=5.
The mitochondria are known as the "powerhouse" of the cell because they generate ATP, the cell’s main energy source, through cellular respiration.
Nocturnal refers to animals that are active at night, as suggested by the context of the sentence.
The only conclusion that follows logically is that cats, being mammals, are part of the group "some mammals." There is no direct evidence about their color.
Calculate 25% of $120: 0.25×120=30. Subtract the discount: 120−30=90.
