Answer:

Step-by-step explanation:
The given expression is

Where
and
.
When we say "evaluate the expression" refers to replacing the given values in the expression. Then, we solve each power in the numerator and denominator. After that, we solve each product in the fraction. At the end, we apply the square power. As follows

Answer:
.......
Step-by-step explanation:
Answer:
The percentage of the hot dog decreased by 20%
Step-by-step explanation:
20% of 2.50 is 50 cents, meaning that the price went down by 50 cents.
Hope this helps!
Answer:
Please see the answer in the picture attached below.
Step-by-step explanation: