Well a and b both would be.
Answer:4:5xn
Step-by-step explanation:
You can use any ratio just times 4:5 by any number then you'll get a ratio equivalent to 4:5
Answer:
(a^3) (a^6)
Step-by-step explanation:
another way
Step-by-step explanation:

Answer:
(x+20) explains the elena walked 20 minutes more than Lin
Step-by-step explanation:
(x+20) explains the elena walked 20 minutes more than Lin
As given in the question that elena walked 20minutes more than lin means if elena walked x then lin walked (x+20) and also jada walked twice as long as elena means 2(x+20) and according to question jada walked 90 minutes means 2(x +20) = 90