Hello!
The formula for volume of a rectangular prism is: 
V = lwh
Let's convert the dimensions to decimals, and then use the formula to solve. 
8 1/2 = 8.5 as a decimal.
7 = 7 as a decimal. 
2 1/2 = 2.5 as a decimal. 
Multiply: 
V = 8.5 × 7 × 2.5 
V = 59.5 × 2.5 
V = 148.75
148.75 = 148 3/4 as a fraction because if you convert 3/4 to a decimal by dividing the numerator by the denominator, it equals 0.75. 
ANSWER: 
The volume of the book is 148 3/4 inches cubed. 
        
                    
             
        
        
        
Answer:
y = 
 x + 8
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
y = - 3x + 13 is in this form
with m = - 3
Given a line with slope m then the slope of a line perpendicular to it is
 = - 
 = - 
 = 
y = 
 x + c ← is the partial equation
To find c substitute (6, 10) into the partial equation
10 = 2 + c ⇒ c = 10 - 2 = 8
y = 
 x + 8 ← equation of line
 
        
             
        
        
        
Answer:920
Step-by-step explanation:
plug it in a calculator