Answer:
the answer is 6.
Step-by-step explanation:
 
        
             
        
        
        
356/8 = 44.5
44.5 miles per hour, miles/hour
        
                    
             
        
        
        
23) Store A: y=6.30÷2
 y=3.15
 Store B: y=3.2
 Store C: y=3.25x
 y=3.25 so Store A sells the cheapest so (A) is the answer 
24) the area uses half of the diameter, not the whole diameter. so the answer is 5.5pi^2 (B)
25) 1/2 × 1/2 = 1/4 × 1/2 = 1/8 (D)
26) was done correctly and (D) is the correct answer
27) 2 (x-3) +1 =19
2 (x-3) = 19 - 1
(x-3) = 18 ÷ 2
x-3 = 9
x= 9+3
x=12 (D)