An item has a listed price of $85. if the sales tax rate is 3% how much is the sales tax

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

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.