Please find the missing value/ times Arrival Time Journey Time Departure Time

09 : 45 ? 20 : 15

15 : 30 4 hours 40 minutes ?

? 1 ¼ hours 19 : 45

all of these are different parts thanks
and are just separators

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

What is sin 7x/4 ? i need on this urgent trig