Find the indicated sum.
A. 54
B. 162
C. 108
D. 81
Answer: B
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The future value of $7,000 deposited today and compounded semiannually at an 9% annual interest rate for four years is
A. $9,955. B. $9,520. C. $8,100. D. $7,920.
Translate the sentence to an inequality.A number is greater than -1.
A. x < -1 B. x > -1 C. x ? -1 D. x ? -1
Complete the identity.
= ?
A. 
B. 
C. 
D. 
Find the exact value of the expression.cos 20° cos 40° - sin 20° sin 40°
A. 
B. 
C. 
D. 