6. Whole numbers are closed under addition and multiplication. This property is known as: (a) closure property. (b) commutativity of addition and multiplication
(c) associativity of addition and multiplication (d) distributivity of multiplication ever
addition,​

closure property is the correct answer

(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

this is answer of 144 cubic meters