5. r×2×pi
7km×2×pi=43.98km
6. d×pi
20cm×pi=62.83cm
7. d×pi
8.5m×pi=26.70m
8. r×2×pi
11yd×2×pi=69.12yd
9. d×pi
6(2/5)ft×pi=20.11ft
10. r×2×pi
25in×2×pi= 157.08in
Answer:
4/15
Step-by-step explanation:
88 birdhouses
6 new boxes
226 postcards
9
Just place 5 where the x value is
4(5) - 11
20 - 11 = 9