True longitudinal analysis a. is concerned with the determination of cause-and-effect relationships. b. can be performed on any panel. c. involves a one-time cross-sectional sample of elements from the population of interest. d. can only be performed using panels that rely on repeated measurements of the same variables.

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

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 diagram shows corresponding lengths in two similar figures. find the area of the smaller figure. a. 14.4 yd2 b. 24 yd2 c. 26.4 yd2 d. 28