please help quick
Elise burns 400 calories per hour biking. This can be represented with the function c(h) = 400h, where h is the number of hours spent biking. Her mother asked her to tow her little sister in the bike trailer, which causes her to burn twice as many calories. This can be represented by the function t(c) = 2c, where c is the number of calories burned per hour.

Write a function that will help Elise calculate the number of calories she will burn per hour while biking with her sister in the bike trailer.

c[t(c)] = 800c
t[c(h)] = 800h
c[t(c)] = 200c
t[c(h)] = 200h