What is the product of −2 2/5 and −3 5/6 ?

Could someone me with this question i’ve been stuck on it for 20 minutes

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree

The mean average cost of standard room per night at a hostel is ? 20.60. therefore, how much does a standard room cost per night at night-time rest days?