Solve. Round answers to the nearest cent.A store is advertising 
off sale on everything in the store. Find the discount of a fax machine that regularly sells for 
A. $1.30
B. $247.00
C. $13.00
D. $258.70
Answer: C
Mathematics
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Provide an appropriate response.If cos x is replaced by 
and |x| < 0.3, what estimate can be made of the error?
A. |E| < 0.000001013 B. |E| < 0.000006075 C. |E| < 0.000020250 D. |E| < 0.000003375
Mathematics
Solve the equation.
+ 6 = 9
A. {3} B. {15, -15} C. {3, -3} D. {-3}
Mathematics
Solve the equation by completing the square.w2 + 12w = - 27
A. 36, -9 B. ± 3 C. 3, 9 D. -3, -9
Mathematics
Solve by addition or substitution.3y + x = 9x = 4y + 2
A. 
B. 
C. 
D. 
Mathematics