Solve. Graph the solution on a number line, and express it in interval notation.-21 ? -3x - 3 ? -9
A. -6 < x < -2, (-6, -2)
B. -6 ? x ? -2, [-6, -2]
C. 2 < x < 6, (2, 6)
D. 2 ? x ? 6, [2, 6]
Answer: D
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Solve.62x = 4x + 1 (Round to the nearest thousandth.)
A. 1.774 B. 3.419 C. 0.774 D. 0.631
Approximate the value using a calculator. Express answer rounded to three decimal places.e?
A. 23.141 B. 5.860 C. 8.540 D. 22.459
Using the factoring method, solve for the roots of the quadratic equation.24x2 = 26x
A. x = 
, x = 26
B. x = 0
C. x = 
D. x = 
, x = 0
Solve the problem.Softee Blankets charges $6 for shipping orders of $20 or less, $10 for orders from $20.01 to $70, and $15 for orders over $70. One week shipping charges for 540 orders totaled $5320. There were 50 more orders for $20 or less shipped than there were orders for over $70. Find the number of orders shipped at each rate.
A. $20 or less: 250; $20.01 to $70: 170; over $70: 120 B. $20 or less: 170; $20.01 to $70: 250; over $70: 120 C. $20 or less: 290; $20.01 to $70: 130; over $70: 120 D. The numbers cannot be determined from the given information.