Tuesday:
The original price is $455 and will be marked up 34%
Multiply the original price by 1.34 ( 1 +34%).
455 x 1.34 = $609.70
Thursday:
The temperature decrease 3 degrees per minute for 5 minutes. Multiply 3 degrees by 5 minutes:
3 x 5 = 15
The temperature decreased a total of 15 degrees.
Subtract 15 from the original temperature:
10 - 15 = -5 degrees Celsius.