Johanna had school loans that totaled $70,792. she paid off $ 46,375 of her loans. she estimates that she has about $25,000 left to pay. which of the following explains how johanna could have figured this out?

a) johanna rounded 70,792 and 46,375 to the nearest thousand and then subtracted the rounded numbers.

b) johanna rounded 70,792 and 46,375 to the nearest ten thousand and then subtracted the rounded numbers.

c) johanna rounded 70,793 and 46,375 to the nearest hundred and then subtracted the rounded numbers.

d) johanna subtracted 46,375 from 70,792 and then rounded the difference to the nearest hundred.

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