Please answer these two questions correctly please

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.

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?