exam Maths Puzzle Numerical Ability

Jessica decides to mix grades of gasoline in her truck. She puts in 5 gallons of regular and 7 gallons of premium for a total cost of $29.44. If premium costs $0.16 more than regular, what is the price of each grade of gasoline?

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This problem set involves a formula (a rational function) with which a new
tortilla company might be able to forecast its production over the first few
weeks of operation.
In t Permutation P = n! / (n-r)! or Combination C = n! / (n-r)! r!
n r n r

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A quinella bet consist o