For each expression listed, is it a difference of squares? Explain yes or no and why or
why not. Explain in enough detail so there is no doubt that it is or isn't a difference
of squares.
1. 45 - 25
2. 9m?n? - 121
3. p18 - q10
4. 16r2 - 27

x = -2

y = 848

step-by-step explanation:

plug in the numbers

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.