a Anna drives her sisters at an a average of 60 mph and devive home
Answer: 
Step by step:

(Used a table of common angles)
Answer:
20 ft.
Step-by-step explanation:
7 ft and 3 ft.
3*2=6
7*2=14
6+14=20.
Answer:
a= 3
b=3
c=3
d=3
Step-by-step explanation:
12-?=4, or it could also be like 12-3=4. so thats how i got it.
hope it helps. i tried. hope i did it correct if thats what u need