Question

ten years ago, you could buy a loaf of bread for $1.21.
twenty years ago, you could buy a loaf of bread for $0.92.
what is the difference in prices?

Explanation:

Step1: Identify relevant prices

Price 10 years ago: $\$1.21$, Price 20 years ago: $\$0.92$

Step2: Calculate price difference

Subtract the lower price from the higher price.
$\$1.21 - \$0.92 = \$0.29$

Answer:

$\$0.29$