please answer quickly

1) 6a - 2b

2) 2a + b

3) 2b + a

4) 4b - a

5) 3(a + b)

Step-by-step explanation:

2a + b ==> 2(3) + 5 = 6 + 5 = 11

2b + a ==> 2(5) + 3 = 10 + 3 = 13

3(a + b) ==> 3(3 + 5) = 3(8) = 24

4b - a ==> 4(5) - 3 = 20 - 3 = 17

6a - 2b ==> 6(3) - 2(5) = 18 - 10 = 8

Now order them from least to greatest

6a - 2b ==> 6(3) - 2(5) = 18 - 10 = 8

2a + b ==> 2(3) + 5 = 6 + 5 = 11

2b + a ==> 2(5) + 3 = 10 + 3 = 13

4b - a ==> 4(5) - 3 = 20 - 3 = 17

3(a + b) ==> 3(3 + 5) = 3(8) = 24

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.