Answer:
car worth when she bought it is $24705.88
Step-by-step explanation:
given data
value of car decreased = 15%
car now worth = $21,000.00
solution
we consider here car worth when she bought it = x
value of car decreased 15 % it mean
(100 - 15% ) price 85% = $21,000.00 ........1
when car price 100% = x ...............2
so from equation 1 and 2 we get
x × 85 = 100 × $21,000.00
solve it we get
x = 24705.88
so car worth when she bought it is $24705.88