Markus was given dollar bills from his grandfather each day for one week. On the first day he received $1, on the second day he received $2, on the third day he received $4, and on the fourth day he received $8. If this pattern continues, how much money will Markus have by the end of the week?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.