The graph shows sales in thousands of dollars for 1989 and 1990. Use it to answer the question. 
If the ordered pair (x, y) represents a point on the graph, what does x represent? What does y represent?
A. x represents the month; y represents the sales in thousands of dollars.
B. y represents the month; x represents the sales in thousands of dollars.
C. x represents the year 2006; y represents the sales in thousands of dollars
D. x represents the year 2006; y represents the year 2007.
Answer: A
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Translate the statement into a mathematical equation.9 times a number subtracted from 7 times the number is 26.
A. 7x + 9x = 26 B. 7x - 9x = 26 C. 7(x - 9) = 26x D. 7x(9 - x) = 26
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.A = ?r2; r = 6, ? = 3.14
A. A = 9.14 B. A = 59.16 C. A = 113.04 D. A = 18.84
Find the root if it is a real number.
A. 6
B. 1296
C. 
D. Not a real number
Find the volume specified. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the volume of an ice cream cone (right circular cone) of radius 8 cm and height 9 cm topped by a perfect hemisphere of ice cream of the same radius.
A. 2277.6 cm3 B. 2746.5 cm3 C. 1071.8 cm3 D. 1674.7 cm3