The temperature dropped by −2.5 Celsius degrees for 5 consecutive days. What was the total decrease in temperature over the 5-day period, expressed as a signed number?
If the temperature dropped by -2.5 for 5 days, then multiply -2.5 and 5 to get the total decrease. (-2.5)(5) = -12.5 Over the 5-day period, the temperature dropped by -12.5 degrees Celsius. Hope that helps!!