Simplify.6 ? 12 - (13 - 10) ÷ 3 - (4 - 5)
A. 62
B. 24
C. 72
D. 19
Answer: C
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Write each whole number in expanded form.30,900
A. 3000 + 900 B. 3,900,000 C. 30,000 + 9000 D. 30,000 + 900
For the given figure, find the ratio of the length of the longest side to the length of the shortest side. Write the ratio as a fraction in lowest terms.
A = 17 inchesB = 8 inchesC = 16 inches
A. 
B. 
C. 
D. 
Given matrices A = 
, B = 
, and C = 
, decide if the statement is true or false.(AB)C = A(BC)
A. True B. False
A contractor needs to grade the slope of a subdivision lot to place a house on level ground. (See the illustration.) The present slope of the lot is 10.5°. The contractor needs a level lot that is 106 ft deep. To control erosion, the back of the lot must be cut to a slope of 23.2°. How far from the street, measured along the present slope, will the excavation extend? Round your answer to the nearest foot.
A. 184 ft B. 190 ft C. 196 ft D. 168 ft E. 210 ft