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:
There are two when n= 11 and n=-11
Step-by-step explanation:
Answer:
The length is 20 inches and the width is 5 inches!
Step-by-step explanation: