Multiply to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.2 ? 4
A. 8
B. 6
C. 8
D. 8
Answer: D
Mathematics
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Solve the equation.Solve sin ? = 
for ?, where 0 ? ? ? 
.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.At the beginning of the month, Christopher had a balance of $181 in his checking account. During the next month, he wrote a check for $25, deposited $79, and wrote another check for $97. What was his balance at the end of the month?
A. $20 B. -$20 C. $138 D. -$138
Mathematics
Add or subtract. Express the answer as a mixed number.
A. 14
B. 11
C. 13
D. 13
Mathematics
Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = x2 + 3 , g(x) = 
- 3
A. Yes, yes B. No, no C. Yes, no D. No, yes
Mathematics