exam Maths Puzzle Numerical Ability

How do you solve this equation: 5(4n-4)= -60 ?

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exam Other Question

what are the properties and operation of signed numbers? Ronald wants to sell his care 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 selling price?