Write the standard form of the whole number that is expressed in word form in the sentence.The Johnsons have driven their car forty-nine thousand, eight hundred one miles in the last few years.
A. 490,801
B. 49,801
C. 4,981
D. 49,810
Answer: B
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Rationalize the denominator.
A. 
B. 21
C.
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D.
Solve the system of equations using the inverse of the coefficient matrix.2x + 8y + 6z = 204x + 2y - 2z = -23x - y + z = 11
A. x = -1, y = 2, z = 1 B. x = 2, y = 1, z = 6 C. No solution D. x = 2, y = -1, z = 4
Work the application. Write a legend and an equation. Solve the equation and answer in a complete sentence.Richard's team wants to plant 220 trees in 4 months. On average, how many trees per month do they need to plant?
A. Let t = the number of trees per month they need to plant. 220 ? t = 4 On average, they need to plant 65 trees per month. B. Let t = the number of trees per month they need to plant. 220 = 4 ? t On average, they need to plant 55 trees per month. C. Let t = the number of trees per month they need to plant. 220 ? t = 4 On average, they need to plant 59 trees per month. D. Let t = the number of trees per month they need to plant. 220 = 4 ? t On average, they need to plant 110 trees per month.
Use Gaussian elimination or Gauss-Jordan elimination to solve the problem.A basketball fieldhouse seats 15,000. Courtside seats sell for $8, end zone for $7, and balcony for 
Total for a sell-out is 
If half the courtside and balcony and all end zone seats are sold, ticket sales total 
. How many of each type of seat are there?
A. 4000 courtside 3000 end zone 8000 balcony B. 3200 courtside 1800 end zone 10,000 balcony C. 3000 courtside 2000 end zone 10,000 balcony D. Cannot be determined