841jcanswers

102 ÷ 6 is 17 15+19 is 34, 34 ÷ 2 is 17 There is no mode for this question. = =
 * 1. Mean, Median, Mode**
 * Numerical Order:** 4, 6, 15, 19, 21, 37
 * Mean:** 4+6+15+19+21+37 is 102
 * Median:** 4, 6, __**15, 19**__, 21, 37
 * Mode:** 4, 6, 15, 19, 21, 37

The answer to this question is self-explanatory. It's in the perfect square chart:
 * 2. Square Roots**
 * **Factors** || **Exponents** || **Perfect Square** ||
 * 9x9 || 9**²** || 81 ||

To do this question, you want to take a number that's easy to work with. Let's go with 100, since we're working with percents. So... you take the number 100, and you subtract 25%, you should get 75. But if we take 100, subtract 15, and then subtract another 10%, you get a different answer: 100 - 15% is 85 85 - 10% is 76.5 They are in fact different, because by taking 10% off 85 you get a lower percent than just taking off 25% from the original number.
 * 3. Percent**

Solved like this:
 * 4. Ratio and Proportion - Equivalent Fractions**


 * 5. Ratio and Proportion -**