Solve the problem.Students at Maple School earned $238 selling candles. They want to accumulate 
for a club trip. What percent of their goal has been reached?
A. 0.119%
B. 11.9%
C. 8%
D. 80%
Answer: B
Mathematics
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Rewrite the expression in terms of exponentials and simplify the results.
2
A. e-10x2 B. -e-20x C. e20x - e-20x D. e-20x
Mathematics
Solve the equation for x.sin-1 
- cos-1 x = 0
A. {0}
B. 
C. 
D. ?
Mathematics
In chemistry the formula of pH is pH=-log[H+] qhere H+ is the concentration of the hydrogen ions. A mixture of acetic acid has a pH of 2.9. Find the concentration of hydrogen ions in the mixture.
What will be an ideal response?
Mathematics
Decide whether or not the set is closed under multiplication.{0, 1}
A. Closed B. Not closed
Mathematics