Ms. Thompson has two trees in her backyard. The first is 20 feet tall. The second is 12.25 feet tall. What is the difference in height between these two
trees?

the difference in height is 7.75 feet

Step-by-step explanation:

20-12.25=7.75

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.

b. x + 1

step-by-step explanation:

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