Which values from the given replacement set make up the solution set of the inequality? m+7<18 ; {8, 9, 10, 11}

{10, 11}

{9, 10, 11}

{8, 9}

{8, 9, 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?  

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

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?