Answer: $252
Explanation: First off, we want to do 450(0.7). The reason we do this is because the problem says she uses 30% of her money, meaning it goes down by 30%, not that the amount of money becomes 30% of what it originally was. 450(0.7) = 315. Next, we want to do 315(0.8) because it says she uses 20% of the REMAINDER. 315(0.8) = 252, and once you label it, it will become $252.
The correct answer is A) It is (2, 2).
Answer 3:2
14 And 33
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There are 5 + 1 = 6 terms in the binomial expansion of (1−0.02)5, and since the 4th term is approximately 0, the 5th and 6th terms are also approximately 0. So, approximate the value of 0.985 by adding the first three terms: 1 + (-0.1) + 0.004 = 0.904.
A would either be + or -3, or + or minus 4 depending on what b is