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Maths Puzzle
Numerical Ability
Enrique puts 12% of his monthly paycheck in an IRA. If he invests $72 in his IRA, how much was his paycheck?
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A trough is made from a rectangular strip of metal 50cm wide. The metal is bent at right angles so it is x centimeters high alon
How do you graph piecewise functions?
Example:
f(x)= {x+2 if x < or equal to -2
{3x if x > -2
Do you plug in a number that is less than or equal to -2 for the first sta