10) 5x + 12 = 4x + 6 = 6 11) −8x − 14 = 7(−2 − 4x) + 4x

12) 16 − 2n = −8 + 4(n − 3)

13) −6(3 − 6r) = −18 + 4r

14) 4(3b − 1) = 9 − b

15) −6x + 7(1 − x) = −4(x − 4)

16) 5 − (8v + 5) = −4(1 + 3v)

17) −8(4 + 4n) = 8(n + 6)

18) 3(a − 6) = −5a − (7 + 3a)

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

Alexandra drove from michigan to colorado to visit her friend. the speed limit on the highway is 70 miles per hour. if alexandra's combined driving time for the trip was 14 hours how many miles did alejandra drive?