Complete the statement so that the indicated property is illustrated. Simplify the answer, if possible.-7 + (15 + 5) =
A. (15 + 5) - 7 = 13
B. (-7 + 15) + 5 = 13
C. 5 + (15 - 7) = 13
D. (-7 + 15) + (-7 + 5) = 6
Answer: B
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Describe the graph using both set-builder notation and interval notation.
A. {x?x ? -2}, (-?, -2] B. {x?x ? -2}, [-2, ?) C. {x?x < -2}, (-?, -2) D. {x?x > -2}, (-2, ?)
Solve the problem.A cellular phone plan had the following schedule of charges:Basic service, including 100 minutes of calls$20.00 per month2nd 100 minutes of calls$0.075 per minuteAdditional minutes of calls$0.10 per minuteWhat is the charge for 200 minutes of calls in one month?What is the charge for 250 minutes of calls in one month?Construct a function that relates the monthly charge C for x minutes of calls.
What will be an ideal response?
Find an equation for the line, in the indicated form, with the given properties. Containing the points (3, -2) and (-1, 7); general form
A. 5x - 8y = -51 B. 9x + 4y = 19 C. -9x + 4y = 19 D. -5x + 8y = -51
Solve the inequality and graph the solution set.| 9 - x | ? 2
A. [7, ?)
B. [11, ?)
C. (-?, 7] ? [11, ?)
D. [7, 11]