exam Maths Puzzle Numerical Ability

a taxicab ride that is 2 miles long cost $7. One that is 9 miles long cost $24.50. Write an equation relating cost to length of ride.

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exam Other Question

Find the maximun value of z=3x +2y subject tothe contraints x>=0, y>=0, x+2y<=4, x-y<=1 Please help me with the setup of this formula: Find four consecutive odd integers such that the product of -3 and the sum of the first and fourth is 30 less than 10 times the opposite of the third.