book Maths Puzzle Numerical Ability

Neil sets the prices in the Hardware To Go store. His research shows than an increase of 10 cent in the price of a package of batteries causes a drop in sales of 10 packages per da

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Does the inside of the absolute value change to a negative if it is positive, or positive if it is a negative, or does the outside of the absolute value change to a negitive if it Math Question: Simple Intrest = Amount of deposit x Interest rate(decimal) x time (years). What is the simple interest earned?

deposit $2000
6.5 Interest
1.5 yrs