27-29 it is sixth grade math and is due october 16

27. 7+(x+5) when simplified, you'll get 12+x

28. 9(8y) when simplified, you'll get 72

29. 7(2y) = 14y

(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