Answer:
the answer is 29.1
Step-by-step explanation:
do 30 * .97
 
        
                    
             
        
        
        
To calculate how much 9 apples cost, you must multiply 9 to 4.55 and then divide by 7. This is done by setting up a proportion.
        
             
        
        
        
Answer:
50 degrees
Step-by-step explanation:
They are alternate exterior angles, so they add up to 180 degrees.
 
        
             
        
        
        
Answer: History textbooks sold: 198
Psychology: 114
Step-by-step explanation: 312- 84= 228
228 divided by 2= 114
Add 84 to 114 to represent the history textbooks since they have more.