Find 30% of the item and then subtract from the original value.
Find 70% of the item and that is your answer.
In more conventional notation, ...
b(x) = -15x² +450x +325 . . . . 0 ≤ x ≤ 24
For 1990, x = 1990 - 1983 = 7
b(7) = -15·7² +450·7 +325 = 2740
The value of the card in 1990 was 2740.
Answer:
25%
Step-by-step explanation:
1/4×100
=25
.............
Answer:
The answer is 8/3 I think
