Answer:
Total Fencing Cost =$19.57
Step-by-step explanation:
If Rosalina is planning on fencing, we are talking about the Perimeter of the Flower Bed
Radius of the circular flower bed =3.5 ft
Perimeter = 
If Wire fencing Cost $0.89 per foot
Total Fencing Cost = $0.89 X 21.99=$19.57
Answer:
16 km is the answer
Step-by-step explanation:
a (Colton to parents' house) = 12 km
b = ?
c (parents' house to grandparents' house) = 20 km
According to the Pythagoras theorem,
a² + b² = c²
12² + b² = 20²
144 + b² = 400
b² = 400 - 144
b² = 256
b = 16
∴ Colton is 16 km away from his grandparents' house.
The answer is B, (-10,-2) , (6,6)
C because the two angles add to 180° making it supplementary