Hello! 3.5% in decimal form is 0.035. You add 1 to that to get 1.035. B is out, because that number is too high. A is out, because it doesn't add 1. The formula for compound interest is P(1 + r)^t. D is also out, because it incorrectly interprets 3.5% in decimal form. The correct form is 3,500(1.035)^t. The only one that shows this is C. Therefore, the answer is C.
How to simplify : keep on dividing the numbers until you get to the lowest number.
EX: Simplify 36
What number goes into 36..... 9!
so 36/9
=4
Area of a triangle is base x height divided by 2, therefore the height would be 3cm. 8 x 3 = 24, 24 divided by 2 = 12.
