Solve the problem.The Family Arts Center charges $20 for adults, $15 for senior citizens, and $10 for children under 12 for their live performances on Sunday afternoon. This past Sunday, the paid revenue was 
for 685 tickets sold. There were 45 more children than adults. How many children attended?
A. 246 children
B. 211 children
C. 218 children
D. 365 children
Answer: D
Mathematics
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Use a vertical format to add the polynomials.4x
8 - 6x
7 + 4x
6 + 4
A. -5x8 - 5x7 + 12x6 + 3 B. 13x8 - 15x7 - 5x6 + 12 C. -7x42 + 12 D. 13x16 - 15x14 - 5x12 + 12
Mathematics
Use a calculator (in radian mode) to evaluate the given expression.cos-1 0.8910
A. 1.0995 B. 0.6286 C. 27.0008 D. 0.4713
Mathematics
Solve the discount problem.A painting originally priced at $210 is on sale at 10% off. Find the sale price. Round to the nearest cent.
A. $189.00 B. $21.00 C. $2.10 D. $2079.00
Mathematics
Multiply and simplify.
? 
A. 
B. 9
C. 
D. 
Mathematics