Help me plsss pls​

below

Explanation:

question 3

40.15°C - 2.25 °C

=37.9°C

question 4

boiling point of watera

at sea level = 100°C

= 100°C - 6.5°C

= 93.5°C at the top of the mountain

hancock was president of congress when the declaration of independence was adopted and signed. he is primarily remembered by americans for his large, flamboyant signature on the declaration, so much so that "john hancock" became, in the united states, an informal synonym for signature.

explanation: