At 9am the outside temperature was -3
f. by noon, the temperature was 12
f. jorge said that it was getting warmer outside. is he correct? explain.

At 9 a.m. it was -3
by noon, it was 12

Jorge said it was getting warmer outsideJorge is correct.

because -3 is a temperature 3 degrees less then 0and 12 is a temperature 12 degrees more then 0.

so the temperature, from 9 a.m. to noon, rose 15 degrees.