Answer:
Step-by-step explanation:
The area of the equilateral triangle is 
P = 4r + 3t
4r = p - 3t
r = (p - 3t)/4
Answer:
I wanna say its B. Vera's only
Answer:
46 2/3
Step-by-step explanation:
Divide 90 by 1.5 because:
Average Distance= distance/time
then 120 by 3 for same reason
then u find each
then add 90 with 120 to get 210 then divide by 4.5 to get 46 2/3