If the two lines below are perpendicular and the slope of the red line is -5/2, what is the slope of the green line

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?

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?

Ebert used to make $22 an hour, but got a 10% raise. how much more will he make in a 40 hour work week with raise?