My guess would be B.
Don't quote me on this lol.
First, you want to divide both sides by 3 to isolate your variable. You get x^2 = 9. The square root of x^2 and 9 equals x = 3.
x = 3 is your answer.
By the Law of Sine,

Solve for x and get x = 65.7.
Step-by-step explanation:
let say he sold 5 bagels then he would sell 5 bagels
12-5=7 , b=7
replace in 12-5=7
b=12-s
If you put 145 divided by 8 the remainder on a calculator would come out as a decimal