You need 320 mL of a 30% alcohol solution. On hand, you have a 15% alcohol mixture and a 55% alcohol mixture. How much of each mixture will you need to obtain the desired solution? You will need mL of the 15% solution and mL of the 55% solution.​

Sandy works at a clothing store. she makes $7 per hour plus earns 15% commission on her sales. she worked 75 hours over the last two weeks and had a total of $2,566 in sales before taxes. which of the following is closest to how much she will earn in hourly wages and commission for those two weeks?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Which of the following best describes the delian problem?