Ali drove to the mountains last weekend. there was heavy traffic on the way there, and the trip took 6 hours. when ali drove home, there was no traffic and the trip only took 4 hours. if his average rate was 22 miles per hour faster on the trip home, how far away does ali live from the mountains

264 miles

Explanation:

given,

time taken by Ali to drove mountain in heavy traffic = 6 hours

time taken by Ali back home, there was no traffic = 4 hours

speed of return is 22 miles per hour faster on the trip home.

let S be the speed when he was driving to mountain.

 speed when he was coming back = S + 22 mi/h

we know

distance = speed x time

d₁ = 6S

d₂ = (S+22)4

now equating both the equations

6 S = (S+22)4

2 S = 88

S = 44 mi/h

distance = 44 x 6

               = 264 miles

distance between mountain and hill is equal to 264 miles.

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.