Question

Sarah swam 0.98 kilometers each day for 3 weeks. How many meters does Sarah swim over the 3 weeks?

Answer 1

Each day she swam 0.98 km. A week, has seven days, so:

$7\times3=21days$

Therefore:

$21\cdot0.98=20.58\operatorname{km}$

She swam 20.58km over the 3 weeks