Simplify 2 x2 - y for x = 3 and y = -2.

2

Step-by-step explanation:

Substitute {x=3

{y=2

~~into 2x2-y

2x2-2

4-2

so the answer is 2.

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.