Simplify: -8w^8 - 4w^8
Enter the original expression if it cannot be
simplified.

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

Solve this problem! extra ! 3025/5.5 = a/90.75