What is this number in expanded form? 8.21 800 + 20 + 1

8 + 0.2 + 0.1

8 + 0.2 + 0.01

8 + 2 + 1

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

Need so much on this one how many yards?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?