Determine if the lines are parallel, perpendicular or neither:
1. x + 4 = y and y – x = -3
2. y = 4x + 3 and 4y + x = -1
3. y + 3 = 6x and -6x – y = 2
4. 2x + 6y = -3 and 12y = 4x + 20
5. 3x – 4 = y and y – 3x = 8

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?

Factor the polynomial expression x6 – x3 – 20

Item 1 which question could the expression 1000n answer? let n = the number of gallons of gas used. how many miles per gallon did the car get driving 1000 miles? let n = the number of grams of food needed for each dog. how many grams of food are needed to feed 1000 dogs? let n = the number of people at the show. how many empty seats were there at the show if there are 1000 seats at the theater? let n = the number of seats at the theater. how many empty seats will there by if 1000 people come to the show?