7 2 For Exercises 18-21, write a rule for each glide reflection that maps ADEF to AD'EF. SEE EXAMPLE A 18. D(7,-2), E(3,9), F(8,6); D(-5, 1), E(-1, 12), F(-6,9)

20. D(0, 4), E(6, 3), F(9, 8); D1-6, -8), E (0, -7), F (3, -12)

How do you write something in scientific notation?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83