Answer:
27 blue balls
Step-by-step explanation:
R : B = 6 : 9
9/6 x 18 = 27
Answer:
Machine B
Step-by-step explanation:
Since, Machine A covers
square feet in
hours,
Rate at which the Machine A is covering = 
= 
= 2.5 square feet per hour
Machine B covers
square feet in
hours,
Rate at which the Machine B is covering = 
= 
= 
= 3.33 square feet per hour
Therefore, Rate of Machine B is greater.
Answer:eu sunt ndrei ma 12 @ni sis din vaslui
Step-by-step explanation:salut ba