At 4: 40 pm the thermometer outside of yasmin's window read 40°c it had risen 8° betwen noon and 4: 30 pm and 5° bertwen 7am and noon . what was the temperature at 7am?

At 4:30 the temperature is 40 degrees, and this temperature is 8 degrees more than what is was at noon. so we subtract 8 from 40 to get 32 degrees at noon. then we subtract 5 from 32 to get the temperature at 7 am. The temperature at 7 am is 27 degrees