exam Maths Puzzle Numerical Ability

Ronald wants to sell his car through a broker who charges a commission of 10% of the selling price. Ronald still owes $11,025 on the car. Ronald must get enough to at least pay off the loan. What is the range of the selling price?

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exam Other Question

The cost of manufacturing tires is given by c = 100(x + 4)^1/2, where c is the cost in dollars and x us the number produced. What is the cost when no tires are produced? Can someone work this problem for me?

9/x-5 - 1= 8/x+5