Practice problem
Arithmetic Sequences, in Depth
A display of cans on a grocery shelf consists of cans on the bottom, cans in the next row, cans in the next row, and so on, until the top row has cans. How many cans, in total, are in the display?
Practice problem
A display of cans on a grocery shelf consists of cans on the bottom, cans in the next row, cans in the next row, and so on, until the top row has cans. How many cans, in total, are in the display?