Answer:
The minimum length is 19 cm and the minimum width is 6 cm
Difference means to minus
5 1/4 - 2 3/4 =
[since 1/4 cannot minus 3/4, we need to convert one of the 5 wholes into quarters: 5 1/4 = 4 5/4 ]
5 1/4 - 2 3/4
= 4 5/4 - 2 3/4
= 2 2/4
= 2 1/2
If she drives 318.4 km for 4 hours, then if we divide 318.4 by 4 we get 79.6 km per hour.
79.5km per hour x 5.5 hours
=437.8 km
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