Write an equation with integer solutions of: x = ±10, y = 0 and x = 0, y = ±5

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Standard deviation of 19,29,21,22,23

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?