Evaluate the algebraic expressions for the given values of each variable.
r + s2 at r = 4, s = 1
i think it's 6 ,am i correct?

Factor the expression. 4d + 12 __ (d +

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?  

Based on the graph, what is the initial value of the linear relationship? a coordinate plane is shown. a line passes through the y-axis at -2 and the x-axis at 3.