Answer:
Angle c and b are complementary
Step-by-step explanation:
They make up 90 degrees
21²+28²=c²
√1225=c
35 miles - distance of the boat to its starting point
y=5, x=7 because if 3x5=15 then 15-7=8 dont report me if i do get this wrong
It is a constant. hope this helps
