In Toronto, Ontario, the high temperature on January 14 was 11.2 °C.

The high temperature on July 28 was 28.3 °C. What is the difference between
the two temperatures?

To find the difference between the two temperatures, we need to subtract the lower temperature (11.2 °C) from the higher temperature (28.3 °C).

28.3 °C - 11.2 °C = 17.1 °C

So, the difference between the two temperatures is 17.1 °C.