Simplify the expression.

4.8x - 4.6 + 3.9x

8.7x - 4.6

Step-by-step explanation:

4.8x - 4.6 + 3.9x

Group like terms

4.8x + 3.9x - 4.6

Add similar elements: 4.8x + 3.9x = 8.7x

Then you get your

8.7x - 4.6

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.

ans789

step-by-step explanation: