Answer:
5.25%
Step-by-step explanation:
this question is asking '1.05 is what percent of 20'?
you can use the proportion: is/of = percent/100
the 'is' = 1.05
the 'of' = 20
'what percent' = x/100
1.05/20 = x/100
cross-multiply to get:
20x = 105
x = 5.25
