In december one artificial christmas tree cost $159. in january the same tree cost $62. find the percent of decrease to the nearest whole percent.

Anne is twice as old as bill, and bill is 3 years older than christie. the sum of anne s and christie s ages equal 72. find their age difference.?

The temperature of chicken soup is 192.7°f. as it cools, the temperature of the soup decreases 2.3°f per minute. what is the temperature in degrees fahrenheit of the soup after 25 minutes? a. 27.3°f b. 57.5°f c. 135.2°f d. 250.2°f

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2