Question

Anais bought 2 1/2 yards of ribbon. She had 1 foot 6 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the curtains?

Answer 1

1 yd = 3 ft = 36 in
36in x 2.5 = 90 inches of ribbon total
1 ft = 12 in + 6 in = 18 inches left over
90 in - 18 in = 72 inches of ribbon was used