Answer:
85
Step-by-step explanation:
15 times 6 is 90. This is how much money he spends on 6 DVDs if they're all $15. 90 subtracted by 5 (remember - he gets $5 off his entire purchase, not just each individual DVD) would be 85!
 
        
             
        
        
        
Answer:
21x-28
Step-by-step explanation:
the distributive property states that a(bx+c) is equal to abx+ac. in this expression, a is 7, b is 3, and c is negative 4. ab is 7*3, which is 21, so abx is 21x. ac is 7*-4, which is -28. combining these two results in 21x-28.
 
        
                    
             
        
        
        
Answer:
#14 - t = for each t-shirt(s) sold / h = hour(s) worked
8h + 0.50t
#15 - d = for hot dog(s) sold / h = hour(s) worked
8.50h + 0.35d
Is this what you needed?
 
        
                    
             
        
        
        
Volume of the cylinder is 480 cm³ (rounded off to the nearest tenth)
Step-by-step explanation:
- Step 1: Find volume of the cylinder when radius = 4 cm and height = 9.5 cm
Volume = πr²h = 3.14 × 4² × 9.5
              = 3.14 × 16 × 9.5 = 477.28 cm³ ≈ 480 cm³
 
        
             
        
        
        
Answer:
3600
Step-by-step explanation:
4.8x10^3-1200=3600