Solve the problem.The number of cows that can graze on a ranch is approximated by 
where x is the number of acres of grass and y the number of acres of alfalfa. If the ranch has 75 acres of alfalfa and 25 acres of grass, how many cows may graze?
A. 600 cows
B. 798 cows
C. 598 cows
D. 800 cows
Answer: C
Mathematics
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Solve the application.A farmer is planning to plant alfalfa in circular plots. The diameter of each plot is to be 42.1 m. What will be the circumference of each of the farmer's plots of alfalfa? Use 3.14 for ?.
A. 264.388 m B. 132.194 m C. 127.984 m D. 255.968 m
Mathematics
Evaluate the expression.(5x)0
A. 1 B. 0 C. -1 D. 5
Mathematics
Add or subtract, as indicated. Assume that all variables represent positive real numbers.6
- 5
A. - 
B. 
C. - 
D. 
Mathematics
Simplify the expression.4-3/2
A. - 
B. 
C. -8
D. 8
Mathematics