At 8 am the temperature was 3 degrees below zero. by 9 am the temperature had gone up 6 degrees, but by 10
am it had gone down again 4 degrees. what was the temperature at 10 am?
make a selection:
a. 5 degrees below zero
b. 1 degree above zero
c. 1 degree below zero
d. 5 degrees above zero

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212