The yearbook staff is unpacking a box of school yearbooks. the
arithmetic sequence 281, 270, 259, 248 represents the total number of ounces
that the box weighs as each yearbook is taken out of the box.
a. write a function to represent this sequence.
b. determine the weight of each yearbook.
c. if the box weighs at least 11 ounces empty and 292 ounces when it is full, how
many yearbooks were in the box?