At 3: 00a. m,the temperature is -5°f. between 3: 00a. m. and 6: 00 a. m.,the temperature drops by 12°f. between 6: 00a. m. and 9: 00a. m., the temperature rises by 4°f. what is the temperature at 9: 00a. m.?

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image