Brittany Aguilera forms matched pairs when systolic blood pressures fall within 5 mm Hg in order to create treatment groups that are equivalent on this variable. Which form of matching does this illustrate?Interval matchingPrecision matchingRange matching.Rank-ordered matching

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.