Emory charges 1.25 per square yd for each lawn he mows. Emery records the dimensions of his neighbor's lawn and calculates he will charge $21. If the width of the neighbor's lawn is 4 yards what is the length, in yards of their lawn?

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.

two data sets with the same median will not have the same varaibility

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if she was to only spend a dollar she can get 1lb

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