Rob is saving to buy a new MP3 player. For every $15 he earns babysitting, he saves $7. On Saturday, Rob earned $45 babysitting. How much money did he save? If he earned $45, he saved $.

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.

45

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true

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c - they will have the same distribution

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this is the only one that could make sense. : )