I do not know how to find part b of this problem can anyone help me.

When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has increased to 10°C. (Round the answers to one decimal place.)

(a) What is the temperature of the drink after 35 minutes?

°C

(b) When will its temperature be 16°C?

minutes