Answer:
A. $260
Step-by-step explanation:
bob = $250
diana = 4/5 of bob
diana = 4/5 x $250
diana = $200 = 100%
30 % inc means she added 30% on top of what she had already which was 100%
30% + 100& = 130%
if 100 % = %200
130% = 130% x $200
100%
= $260