How do u write 400.638 in expanded form using decimals

Penny pays $16 a month for her book club membership. With the membership, each book costs $3. Write an algebraic expression for her total bill for one month if she buys b books that month.

Find all zeros for h (x) = 2 (x-1) (x-2) (x+2)

The sales tax for Chicago is 9.5%. How much tax would you expect to pay if your bill came to $250.

Eric is hanging a rectangle mirror that has a diagonal of 50 inches with an angle depression of 60 degrees. How many square inches is the mirror. (Round to the nearest degree)

When a crew rows with the current, it travels 18 miles in 3 hours. Against the current, the crew rows 6 miles in 3 hours. Let x=the crew's rowing rate in still water and let y = the rate of the current.

X, - 7,-6,-5,-4 y, 21,17,13,9

BookWorms increased its prices by 5%, and then increased by 3%. Books Galore increased its prices by 3%, and the increased them by 5%. Which shop's prices increased by the greater percentage? a. BookWorms b. Books Galore c. Both the same d.

Which graph is a sloution set to the open sentence? 12 < 3b or 2b + 14 < 4

Debra earns $7.50 an hour, plus tips, as a waitress. Suppose she works 24 hours in one week. How much money must she receive in tips to earm more than $250 that week?.

According to data on the state of Iowa, the amount of water used for cooking per household per month is normally distributed, with a standard deviation of 10.4 liters. A survey was carried out to estimate the population mean.