Answer:
Step-by-step explanation:
500+7500=8000
150x50=7500
8000 books were sold over the course of 50 days
 
        
             
        
        
        
Step-by-step explanation:
1. d = rt
Divide t from both sides.

2. PV = nRT
Divide P from both sides.

3. 
Add g to both sides.
 = g + a
 = g + a
Now multiply by 2 on both sides.
x = 2(g + a)
(or, x = 2g + 2a)
4. g
Divide g from both sides.

Now subtract 1.5 from both sides.
h = 
5.  
 
n = 
 
        
             
        
        
        
Answer:
The graph is a translation 3 left and 1 up from the function f(x) = x3.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Her mother will donate $24
Step-by-step explanation:
In order to find this, first find the unit rate. To do so, divide the amount by the number of miles it takes to get that amount. 
$0.40/0.25 miles = $1.60 per mile
Now we multiply that by the total number of miles. 
$1.60 per mile * 15 miles = $24