Answer :
Each day she swam 0.98 km. A week, has seven days, so:
[tex]7\times3=21days[/tex]Therefore:
[tex]21\cdot0.98=20.58\operatorname{km}[/tex]She swam 20.58km over the 3 weeks
Each day she swam 0.98 km. A week, has seven days, so:
[tex]7\times3=21days[/tex]Therefore:
[tex]21\cdot0.98=20.58\operatorname{km}[/tex]She swam 20.58km over the 3 weeks