Solve the system by addition. 9x + 5y = -21 2x - 2y = 14
A. {(1, -5)}
B. {(1, -6)}
C. {(0, -5)}
D. ?
Answer: B
Mathematics
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Convert the angle into degree decimal form. Round the answer to two decimal places.26°30'49''
A. 26.47° B. 26.51° C. 26.52° D. 26.57°
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Solve the linear inequality. Express the solution using set-builder notation and interval notation. Graph the solution set.
x ? 3
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Mathematics
Fill in the blank with <, >, or = to make a true comparison statement. 3.851 
3.8507
A. < B. > C. =
Mathematics
Solve the problem.Ms. Patterson proposes to give her daughter Claire an allowance of $0.05 on the first day of her 13-day vacation, $0.10 on the second day, $0.20 on the third day, and so on. Find the allowance Claire would receive on the last day of her vacation.
A. $0.65 B. $4096.05 C. $409.60 D. $204.80
Mathematics