Use a proportion to solve the problem.If 7 sandwich rolls cost $1.82, how much will 25 rolls cost?
A. $12.74
B. $6.50
C. $7.50
D. $14.74
Answer: B
Mathematics
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Simplify the expression. If any variables exist, assume that they are positive.
+ 
A. 5
B. 6.5
C. 
D. 13
Mathematics
Evaluate the integral. 
A. 9 sin-1
- 
+ C
B. 9 sin-1
- x
+ C
C. 
- 3 ln
+ C
D. -3sin-1
- x2
+ C
Mathematics
Solve the application using the percent equation. Answer with a complete sentence.17 of those that Stephen called, agreed to donate money. This amounted to 4% of those that he called. How many people did he call?
A. Stephen called 4250 people. B. Stephen called 425 people. C. Stephen called 475 people. D. Stephen called 415 people.
Mathematics
Write the expression in the standard form a + bi.
A. -i B. 1 C. i D. -1
Mathematics