For his long distance phone service, Hong pays a $2 monthly fee plus 12 cents per minute. Last month, Hong's long distance bill was $18.44. For how many minutes was Hong billed?

Find the area of the regular hexagon if a side is 20 cm.

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?