Give the genus of the object.A football
A. Genus 1
B. Genus 3 or more
C. Genus 2
D. Genus 0
Answer: D
Mathematics
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Solve by the elimination method.x + 4y = 157x + y = 16
A. 
B. 
C. 
D. 
Mathematics
Rationalize the denominator.
A. 7
- 1
B. 7
+ 7
C. 
D. 7
- 7
Mathematics
Find the GCF.40, 48
A. 1 B. 2 C. 4 D. 8
Mathematics
Solve the system of equations. [Hint: Let u = 
and v = 
, and solve for u and v. Then let x = 
, and y = 
.]
A. x = -8, y = 
; 
B. x = 
, y = -8; 
C. x = 
, y = - 
; 
D. x = - 
, y = 
; 
Mathematics