3) Choose the best answer.
Freddie made a tile mosaic of the American flag. Write a 3-variable linear equation showing the number of red (r), white (w), and blue (b) tiles used if the total was 1,776.
Or + w +b = 1,776
〇 7r+190+6=1,776
O 1,776(r + w + b) = 13
O 1,776(r + w + b) = 1
