Answer:
531.4
Step-by-step explanation:
ED/AE=BC/AB
ED=AE*BC/AB
ED=240*620/280
ED=531.4
Answer: I dont know
Step-by-step explanation: i need more information
Reverse engineer
2*2-3=1
so its 1
b = 5/2x + 7
b + (-5/2x) = 7
b - 5/2x = 7
