Abus makes a stop at 2: 30,letting off 15 people and letting on 9.the bus makes another stop ten minutes later to let off 4 more people. how does the number of people on the bus after the second stop compare to the number of people on the bus before 2: 30 stop?

Whatever the initial number of people in the bus was, we know that this number underwent the following transformations: after the first stop, we have

After the second stop, we have

So, globally, there are 10 people less at the end.

answer: -8.2562234e+13

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47