What is the value of the expression (4.7 x 10^5) (2.8 x 10^3) in scientific notation?

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

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite