Answer:
65/100
Step-by-step explanation:
[tex]\frac{13}{20}[/tex] is Rima's score.
To get from 20 -> 100 we multiply by 5. But we can't just multiply the denominator (20) by 5.
We instead multiply [tex]\frac{13}{20}[/tex] by [tex]\frac{5}{5}[/tex] . We can do this without changing the value of our original fraction as 5/5 is just 1.
13/20 * 5/5 = 65/100