When the following expression is written in simplest form, what is the coefficient of the variable term? -2.5y + 8y - 10.5y a. -5 b. 5.5 c. 0 d. -21

i think c. but don't trust it.

step-by-step explanation:

(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