Factor out the GCF.48a9b3c8 - 96a7bc6 + 96a3b2c3
A. 48a3(1a6b3c8 - 2a4bc6 + 2b2c3)
B. 48(1a9b3c8 - 2a7bc6 + 2a3b2c3)
C. 48a9b3c8(1 - 2a7bc6 + 2a3b2c3 )
D. 48a3bc3(1a6b2c5 - 2a4c3 + 2b)
Answer: D
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Solve the problem.If 8 sandwich rolls cost $2.08, how much will 28 rolls cost?
A. $7.28 B. $8.28 C. $18.64 D. $16.64
Solve the problem.Suppose that a family has 5 children and that the probability of having a girl is 
. What is the probability of having no girls?
A. 0.31255 B. 0.03125 C. 0.15625 D. 0.06252
Solve the equation by completing the square. Then (i) give the exact solutions and (ii) give the solutions rounded to the nearest thousandth.x2 = 7 - 4x
A. (i) {-2 ± 2
} (ii) {4.633}
B. (i) {-2 ± 
} (ii) {1.317, -5.317}
C. (i) {-1 ± 
} (ii) {2.317, -4.317}
D. (i) {2 + 
} (ii) {5.317}
Solve the problem.Strontium 90 decays at a constant rate of 2.44% per year. Therefore, the equation for the amount P of strontium 90 after t years is P = P0 e-0.0244t. How long will it take for 15 grams of strontium to decay to 5 grams? Round answer to 2 decimal places.
A. 40.50 years B. 450.25 years C. 4.50 years D. 45.03 years.