6 7/9 written in decimal form is equal to 6.777. 6.777 divided by 100 will give 0.06777. To write a number to the nearest thousand, you will have to round up or round down the last three figures in the number. You will round the number up if it up to 500 and above, you will round the number down if its below 500. In our case, we are dealing with a number that have decimal point and so we have to round the last three figure up because it is more than .500. So our answer will be 0.068 to the nearest thousand.
4. Let's multiply the coefficients. 2 * 6 * (-5) = -60. As for the exponents, since they have the same base we'll just add the exponents giving us s^(2 + 1 + 4) = s^7 so the answer is -60s^7.
7. -2/3 * -1/2 * -4 = -4/3 and the exponent is b^(2 + 3 + 4) = b^9 so the answer is -4/3b^9
