Perform the indicated operation.
A. 2
B. 20
C. 10
D. -10
Answer: C
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Decide whether or not the following is a statement.Mary has a cat.
A. Not a statement B. Statement
Determine which of the numbers below is a possible order of magnitude estimate of the quantity described.The total amount of money spent each year on food by Americans.
A. Ten billion dollars B. One trillion dollars C. Thirty trillion dollars D. One hundred billion dollars
Solve the problem by applying the Fundamental Counting Principle with two groups of items.Jamie is joining a music club. As part of her 
introductory package, she can choose from 12 rock selections, 10 alternative selections, 7 country selections and 5 classical selections. If Jamie chooses one selection from each category, how many ways can she choose her introductory package?
Fill in the blank(s) with the appropriate word(s).
Estimate a sum by rounding each addend to the specified place. Estimate a difference by rounding the minuend and subtrahend to the specified place value.532.432 - 209.30 to the nearest ten
A. 320 B. 310 C. 330 D. 300