Aplumber has 2.5 meter long copper wire he needs to cut links of 60 cm 35 cm and 90 cm work out how much the initial 2.5 metres long pipe is left

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?