Ten years ago, the age of Mark was half of Mary’s age. If the ratio of their present age is 3:4, what will be the total of their present age?
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A recording studio charges musicians an initial fee of $60 to record an album. Studio time costs an additional $75 per hour. Which function represents the total cost in dollars, C(t), of recording an album as a function of studio time in t hours?
A high school is having a talent contest and will give different prizes for the best 5 acts in the show. First place wins the most money, and each place after that wins 50 less than the previous place. Create a model that can be used to determine the total amount of prize money based on the value of the first place.
Karlo’s father is 26 years older than Karlo. The sum of their ages five years ago is 42. How old are they now?
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