Asector of area 2pi/3 square inches is formed by a central angle of 45 degrees. what is the radius of the circle?

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

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?  

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.