Helppp please! Dexter wrote the equation, 10x + 160 = 300, to find the number of hours he would need to work at $10 an hour to save $300. According to this equation, how much money did Dexter already have saved before he started working?

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

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

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?