For a stem-and-leaf plot, how many stems would you make out of this data set? 46, 69, 43, 79, 72, 55, 56, 47, 69, 49, 55, 45, 65, 64, 46

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost