Me subtract and simplify: 9 1/5 - 6 3/10 = a) 27/10 b) 2 3/5 c) 3 2/5 d) 2 9/10

The answer is 2.9, or 29/10

(D)

I hope this helps!

Step-by-step explanation:

you have to find a common denominator first

9 2/10-6 3/10

then you subtract

2 9/10, or 2.9, or 29/104

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.

but which class are u may know that first