Answer:
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Group like terms:

Simplify the arithmetic:

Add 7 to both sides:

Simplify the arithmetic:

Simplify the arithmetic:

Divide both sides by 3:

Simplify the fraction:

Find the greatest common factor of the numerator and denominator:

Factor out and cancel the greatest common factor and the answer will be:

Answer:
Ratio
Step-by-step explanation:
Voltage measurement of batteries involves ratio level of measurement because it has a significant zero i.e. zero voltage of the battery will mean no voltage. The mathematical operations of multiplication, division, addition and subtraction are meaningful in ratio level of measurement. The mathematical operations of multiplication, division, addition and subtraction on voltage measurement of batteries are meaningful.
Thus, voltage measurement of batteries involves ratio level of measurement.
The correlation of the scatter plot is negative.
To find out one book you have to divide 65 by 5
65/5 = 13
The answer is $13 per book