Use complete sentences to describe the relationship between sets A and B if A ⊆ B. A = {8}
B = {7, 8, 9}
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A and B's relationship is how they both have the same median, (8). They also have the same number which is also (8).

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.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify