Solve.Last year, Lance's average credit card bill was $139.33. Last month, his credit card bill was $179.21. How much above last year's average was last month's bill?
A. $29.88
B. $39.98
C. $39.88
D. $40.88
Answer: C
Mathematics
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Change the complex number to rectangular form.(cos 20° + j sin 20°)
A. 0.940 + 0.342j B. 20.000 + j C. 0.408 + 0.913j D. 0.342 + 0.940j
Mathematics
Perform the operation or operations when possible.
- 
A. 
B. 
C. 
D. 
Mathematics
Add. Do not use a number line except as a check.- 
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Mrs. Boyd has a desk full of quarters and nickels. If she has a total of 21 coins with a total face value of $2.45, how many of the coins are nickels?
A. 7 nickels B. 14 nickels C. 12 nickels D. 16 nickels
Mathematics