Which pair shows equivalent expressions? a. 2x+10= -2(x-5)
b. -2(x+5)=2x-10
c. -2x-10=-2(x+5)
d. -2(x-5)= -2x-10

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28