Answer:
19.47°
Step-by-step explanation:
2 = opposite to A
6 = hypotenus
From trigonometry :
Sin A = opposite / hypotenus
Sin A = 2 / 6
Sin A = 1/3
A = sin^-1(1/3)
A = 19.47°
I would say answers B and C. If you multiply 80x3 and 9x3, then add those products together, you'll get the same answer as 89x3
.558 is rounded to the nearest thousandth