Regina spent $45.50 over 6 1/2 months on music downloads. If she spent the same amount each month, how much money did Regina spend per month on music downloads? Choose the equation that can be used to represent the situation.

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 nonpermissible replacement for binthis expression.b2/5b +5

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units