+4 The bottom row has 73 boxes. Each row has eight fewer boxes than the row below it. The display has seven rows.
(a) Write and use a function to determine how many boxes are in the top row. Show your work.
(b) Use the appropriate formula to determine the number of boxes in the entire display. Show your work.
+37147 a) each of the other 6 rows has 8 less
73 - 6 *8 = 25 in the top row
b) \(\sum_{0}^{6}\) 73 - 8n = 343 boxes
