Answer:
1. 672 yds, 2. 117°, 3. 4.05 km, 4. 69.3 miles 5. 23 ft
Step-by-step explanation:
See attachment for 1 through 4
5. a²=b²+c²-2bc CosA
a²=(30)²+(20)²-2(20)(30) Cos50°
a=23 ft
