This is multiple choice

which situations are modeled by linear functions ?

((choose all that are correct ))

a) the cost of a bottle of milk increased by 4% each month
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b) the amount of water in a jug decreases by 4.5 oz every 30 mins
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c) the birds flew at a steady speed of 20 mph
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d) jans age is twice franks age, frank's age is twice ricos age, and rico's age is twice madisons age.
××
e)ebony's quiz score increased 5 points every week until she reached the maximum quiz score of 60