First, use front end rounding to estimate each answer. Then find the exact answer.If 67 members of a charity raise an average of 
, what is the total amount of money raised?
A. estimate: $100 ? 67 = $6700; exact: $7839
B. estimate: $100 ? 70 = $7000; exact: $7839
C. estimate: $117 ? 70 = $8190; exact: $7839
D. estimate: $120 ? 70 = $8400; exact: $7839
Answer: B
Mathematics
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A. hyperbola B. parabola C. ellipse D. not a conic
Mathematics
Round as indicated.7530 to the nearest hundred
A. 7400 B. 7510 C. 7500 D. 7600
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Find the first term and the common ratio of the geometric sequence.an = 7n-1
A. a1 = 1, r = 7
B. a1 = -1, r = 
C. a1 = 7, r = -7
D. a1 = 0, r = 7n-1
Mathematics
Identify the equation without completing the square.y2 - 4x2 - 3x + 4y + 1 = 0
A. ellipse B. hyperbola C. parabola D. not a conic
Mathematics