The equation a = 640s gives the relationship between s square miles and a acres. Roger owns 7.5 square miles of farmland. How many acres does he own?
A.
1.17 acres
B.
11.72 acres
C.
4,800 acres
D.
480 acres

Question

The equation a = 640s gives the relationship between s square miles and a acres. Roger owns 7.5 square miles of farmland. How many acres does he own?
A.	
  1.17 acres  
 B.	
  11.72 acres  
 C.	
  4,800 acres  
 D.	
  480 acres

anonymous · Answer

You just have to add the information you were given into the equation.

a = 640s

well is s is for square miles and you now know roger owns 7.5 square miles, there you go

a = 640*7.5

solve to find the answer

anonymous · Answer

Thank you beautiful :)